holiday homework -...

(Class IX) Page 1 of 7

HOLIDAY HOMEWORK

CLASS IX

ENGLISH LANGUAGE

Write composition on both the given topics:

i. Teenagers of today are more influenced by their friends than their parents. Give your views

either for or against the statement.

ii. Write an original short story by continuing the following :-

“We set off in the silence of early morning”

Letter Writing

i. Write a letter to your younger brother living in a hostel in Mumbai, advising him on what

precaution he should take to protect himself from dengue.

ii. Write a letter to the Municipal Corporation complaining about the lack of drinking water

facilities in your area.

ENGLISH LITERATURE

* Character sketch of- Antonio.

* Comment on the relevance of the Opening Scene of the play ‘The Merchant of

Venice.’

* Vividly describe the way in which Antonio’s friend Salanio and Salario try to console him,

showing their concern for him.

The work in literature needs to be done on A4 sheets and submitted in an L-shaped folder.

Note: - Prepare for P.O-I Examination to be held in July, 2018

BIOLOGY

A - Question bank

Answer Q1 -7 in your note book.

Q1. Name the following-

a) Thick rod like structure bearing genes present in the nucleus.

b) Membrane covering of a vacuole.

c) Fluid filled space in the solid matrix of cartilages and bones.

d) Flower lacking both the stamens and carpels.

e) Undifferentiated calyx and corolla.

Q2. Write location and function of the following-

a) Meristem

b) Osteoblast

c) Chromatin fibre

d) Centrosome

e) Adipose tissue


Q3. Give one example of each of the following-

a) Flower with fused sepals.

b) Flower with bracts.

c) Bacteria that help in agriculture.

d) Fungi helpful in medicine.

e) Fungi that causes plant disease.

Q4.Explain the terms-

a) Monoecious

b) Staminode

c) Dichogamy

d) Antibiotic

e) Vaccine

Q5. Differentiate between the following (condition)-

a) Self-pollination and Cross- pollination. (define)

b) Herkogamy and Heterostyle (explain).

c) Egg nucleus and Endosperm nucleus (nature).

d) Leucoplast and Chloroplast (role).

e) Cell membrane and Cell wall (composition).

Q6 Draw a well labeled diagram of –

a) Plant cell.

b) Chloroplast.

c) C.S of bone.

d) L.s of ovule.

Q7. Answer the following-

a) Who put forward the cell theory? What are the sailent features of it?

b) Describe various types of simple epithelial tissue.

c) What is fluid connective tissue? Where is it found in the body? Describe its function.

B –Model/ Chart

Draw a neat and colourful chart / model on any one of the given topics-

a) Acid Rain.

b) NO –Hunger.

c) Afforadable and Clean energy.

d) Gender Equality.

e) Carbon foot print.

f) Save water.

C- “ Prepare for po1 Examination in july”


ECONOMIC APPLICATIONS

PROJECT WORK

Identify the major brands of bathing soaps that are available in the market in your area. Do the survey of

‘five’ departmental stores that sell these brands and collect the sales of these brands over a period of one

week at these shops.

Amongst them identify the brands that sell the most and make a graphical representation of your survey.

GEOGRAPHY

Project Topic: Pollution- Types and Sources, Effects and Preventive Measures

Instructions:

1. Page limit 12-15 pages

2. Cover file with brown cover paper

3. Write with the black pen

4. Underline headings and sub headings.

5. Use relevant pictures, maps, charts and diagrams.

6. Subject matter with case study River Ganga Water Pollution

Prepare for P.O. I Exam in July

HISTORY & CIVICS

PROJECT:

The Indian Constitution protects the rights of children, women, minorities and weaker section. Prepare a

project related to the topic and paste the photograph

In your scrap book or file.

*Submit the work in Project File

“Prepare for the PO-1 exams in July.”

PHYSICAL EDUCATION

Section A

1. Define cell? Write four activities performed by cell.

2. Write the function of epithelia’s tissue.

3. Write the function vacuoles and Golgi apparatus.

4. Draw the well labelled diagram of unstriped and cardiac muscles.

5. Explain the function of Nucleus and mitochondria.

Section B

Football

1. Explain the following terms: (a) goal area (b) centre circle(c) penalty area (d) corner Arc(e) optional

mark

2. Draw a diagram of football field with measurements.

3. Write in details qualities and measurements of the ball.

4. A. How many players in football team?

B. How many substitutions are allowed in official competitions?

1. Project- any football player or skills or rules (at least 10 pages)

2. Make a chart any sports.


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CHEMISTRY

A project of 12-15 written pages, fully illustrated with pictures on the topics mentioned below class wise.

CLASS PROJECT TOPIC

IX A Soil pollution and its harmful impacts

IX B Water pollution and its harmful impacts

IX C Natural polymers and its uses

IX D Nuclear reactors and its useful and harmful impacts

Prepare for P.O.1 examinations in July

MATHEMATICS

Students have to do the Chapter Test from their text book of the under mentioned chapters in a separate

notebook and submit the same on the day when the school reopens in the month of July, 2018.

1) Expansions

2) Factorisation


3) Simultaneous Linear Equations

4) Problems onSimultaneous Linear Equations

5) Indices

6) Logarithms

7) Compound Interest

8) Rational and Irrational numbers

Prepare for PO 1 examination in July.

PHYSICS

Note : Do this work in your Physics Note Book.

Q1. State the principle of:

(i) Vernier

(ii) Screw gauge

Q2. Give two uses of:

(i) Vernier

(ii) Screw gauge

Q3. Define backlash error.

Q4. Name the instrument used to measure:

(i) Diameter of a pin

(ii) Thickness of sheet of paper

(iii) Diameter of a pencil

Q5. Give the relation between light year, parsec and meter.

Q6. Fill in the blanks:

(i) 1micron=-------m

(ii)1angstrom=-----m

(iii) 1fermi=--------m

(iv) 1quintal=-------kg

(v) 1metric tonne=-----kg

Q7. Which physical quantity is obtained from the slope of (i) x-t graph (ii) v-t graph

Q8. Define:

(i) one light year

(ii) pitch of the screw

(iii) least count of the screw

Q9. Define Second’s pendulum and state the factors on which its time period depends and how?

Q10. Plot a graph T2-L and find ‘g’ from its slope.

Q11. A bob is made of ice, how its time period will change when it starts melting ?

Q12. Calculate the length of second’s pendulum on the surface of moon where acceleration due to

gravity is 1.63m/s2.


Q13. Calculate the value of ‘g’ at a place where a simple pendulum of length 2.25m has time period

T=3s. 2 =9.87

Q14. The driver of a train travelling at 40m/s applies the brakes as a train enters a station. The train slows

down at a rate of 2m/s2. The platform is 400m long. Will the train stop in time?

Q15. A body moves with a velocity of 2m/s for 5s then its velocity uniformly increases to 10m/s in next

5s. Thereafter its velocity begins to decrease at a uniform rate until it comes to rest after 10s.

(i)Plot velocity-time graph and displacement-time graph for the motion of the body.

(ii)From the graph find the total distance moved by the body after 2s, 12s and last 10s.

Q16. The second’s hand of a clock is 10cm long. It goes round once every 60s. (a) What is the average

speed of the tip of the second hand? (b) What is the distance travelled by the tip in 10s? What is its

average velocity during the time it makes one revolution?

Q17. A simple pendulum is set up in a laboratory at sea level. How would its time period change if it is

shifted to (i) moon (ii) a deep mine (iii) a place at Mount Everest (iv) an artificial satellite of the

earth.

Q18. A space ship travelling in a space at 400km/s fires its engine for 10s so that its initial velocity

becomes 600 km/s. Find the total distance travelled by the spaceship in 60s, starting from the time of

firing.

Q19. A body initially moving with a velocity of 18km/h starts decelerating at a constant rate of 2m/s2.

Find the time at which it will become stationary. Also find the distance travelled by the body.

Q20. A working model explaining any principle of physics. There can be maximum four children in one

group.

Prepare for P.O. I in July

ENVIRONMENTAL APPLICATION

Section – A

(To be answered in class note book)

Q1. Answer the following questions:-

a) What is sprawl?

b) What are biotic components?

c) What is deforestation? Explain any two harmful effects.

d) What is food chain? Give an example.

e) Define pyramid of number with a suitable diagram.

Section – B

Q1. Make a beautiful project file of fifteen pages which should include proper explanation with pictures

based on any one topic. The topics are:-

a) Conduct a survey of types of waste generated in your locality. Classify them according to

degradability and draw a waste disposable plan.

b) Select an ecosystem in your city and identify the food chain operating there.

c) Saving money and resources with the wind power.

d) Application that improves environmental awareness.

e) Recycling of glass.

Note:-The above project will be evaluated for half yearly/ final practical for 10 marks.

Important instruction:- Prepare for period order – I in July 2018


COMMERCIAL APPLICATIONS

1. Project 1. - Study the working of fast moving consumer goods (FMCG) industry in India – take

any five firms of the industry and group them according to their objectives (profit / non profit

making.

2. Project 2. – B.P.O. (history, working, function, scope, importance etc.)

3. All short and long questions from chapters 1, 2 & 3 discussed in the class. (Questions sheet

attached)

Note: REVISE FOR THE PO-1 EXAM IN JULY 2018.

E.V.S.

A. PROJECT

1. Saving money and Resources with Wind Power

2. Problems of Solid Waste Management

B. WORKSHEET:

Q. 1 Define the following –

(i) Sustainable community (ii) Extinction (iii) Natural Selection

(iv) Co-evolution (v) Biomass (vi) Succession

(vii) Bio accumulation (viii) Dentrification

Q.2 Differentiate between the following -

(i) Mutalism and commensalism.

(ii) Food chain and food web.

(iii) Allogenic succession and Autogenic succession.

(iv) Commensalism and Parasitism.

(v) Defensive mutualism and dispersive mutalism.

Q.3 Answer the following -

(i) How can nitrogen in spite of its abundant presence in the atmosphere, became a limiting

factor.

(ii) What are the two causes of succession ?

(iii) What is Nitrogen fixation.

(iv) List two ways by which waste can be minimized.

(v) What is synergisms ?

Q.4 Explain in detail the steps involved in nitrogen cycle.

Q.5 Write a short note on succession.

Q.6 Discuss the law of Tolerance proposed by Victor Shelford.

Q.7 How does Co-evolution help in forming new species?

Q.8 Discuss how man is responsible for disruption of carbon cycle.

Q.9 Discuss how developing countries can help to attain sustainable development.

Q.10 What are the different types of commensalism? Discuss.

(Class X) Page 1 of 10

Holiday Homework

Class X

English Language

Write composition on both the given topics:

i. Boarding schools are better than day schools for the all-round development and education of a child.

Express your views either for or against the view.

ii. ‘Look before you leap.’ Narrate an incident from your experience which brings out the truth of this

statement.

Letter Writing

iii. Write a letter to your friend, describing him\her your favourite game.

iv. Write a letter to the Municipal Corporation complaining about the bad condition of roads in your town.

English Literature

Character sketch of- Antonio, Bassanio, Nerissa and Portia.

Justify the aptness of the title, ‘Merchant of Venice.’

The work in literature needs to be done on A4 sheets and submitted in an L-shaped folder.

Note: -Prepare for P.O-I Examination to be held in July, 2018

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HISTORY & CIVICS

Project:

Present a life sketch and contribution of any one of the following President of India.

1. DR. Rajendra Prasad

2. DR. S. Radhakrishnan

3. DR.A P J Abdul Kalam (or any other)

Or

Analyze the contribution of M.K. Gandhi in the field of National Movement

*The work should be done in Project File.

“Prepare for the PO-1 exams in July.”

GEOGRAPHY

PROJECT WORK

The length of the project should be 15 written pages and should be written on interleaved sheets. It

should also include maps, statistical diagrams, sketches and pictures.

TOPIC-- Sugarcane cultivation in India.A comparative study of the cultivation of sugarcane in north

India and Peninsular India.

MATHEMATICS

Students have to do the Chapter Test from their text book of the under mentioned chapters in a separate

notebook and submit the same on the day when the school reopens in the month of July, 2018.

1) Quadratic Equations

2) Linear Inequations

3) Factorisation

4) Matrices

5) Ratio and Proportion

6) Arithmetic and Geometric Progressions

7) Banking

8) Shares and Dividend

9) Probability

Prepare for PO 1 examination in July

PHYSICS

Note: Do this work in your physics notebook.

Q1. Write answers to the following:

a) Define moment of force about an axis. Write its SI unit.

b) Define the term Kinetic energy. State work energy theorem.

c) Define the term centre of gravity. Write the method to find the centre of gravity of an irregular lamina.

d) How many classes of levers are there? How do you distinguish between them? Write one example of each

kind of lever.

e) Show with the help of a diagram, during a free fall of the body the total mechanical energy of the body is

conserved.(Taking atleast three points during the fall)


f) There is no gain in mechanical advantage in the case of a single fixed pulley. Explain why the pulley

is then used.

g) Draw the diagram of a single movable pulley and obtain its mechanical advantage, velocity ratio and

efficiency.

h) Give an example of a non contact force which is always attractive in nature. How does the magnitude

of this non contact force on the two bodies depend on the distance of separation between them?

i) Is centrifugal force a real force? If not, then why?

j) The stone of hand flour grinder is provided with a handle near its rim. Give a reason.

k) The work done by a fielder when he takes a catch in a cricket match, is negative. Explain.

l) What is the principle of an ideal machine? How is an ideal machine different from a real machine?

m) State the energy changes in the following cases:

(i) loudspeaker

(ii) steam engine

(iii) electric toaster

(iv) electromagnet.

n) Explain why scissors for cutting cloth may have blades longer than the handles, but shears for cutting

metals have short blades and long handles.

o) (i) The conversion of part of the energy into an undesirable form is called _______________.

(ii) For a given height h, _________ the length l of the inclined plane, lesser will be the effort required.

Q2. Solve the following numericals

a) A uniform metre scale can be balanced at 70.0 cm mark when a mass of 0.05 kg is hung from 94.0 cm

mark.

i) Draw a diagram of the arrangement.

ii) Find the mass of the metre scale. :

b) A block and tackle of 5 pulleys is used to raise a load of 50 kgf steadily through a height of 20 m. The

work done against friction is 2000 J. Calculate

(i) the work done by the effort

(ii) the efficiency of the system

(iii) mechanical advantage

c) Mohak exerts a force of 150 N in pulling Shlok at a constant speed of 36 km/h. Calculate the power

exerted in SI unit.

d) A boy weighing 350 N runs up a flight of 30 steps, each 20 cm high in 1minute. Calculate

(i) the work done and (ii) power spent.

e) A block and tackle system has the velocity ratio 3. Draw a labelled diagram of the system indicating the

points of application and the direction of load and effort. A man can exert a pull of 200 kgf. What is the

maximum load he can raise with this pulley system if its efficiency is 60%.

f) Calculate the kinetic energy of a body of mass 0.1 kg and momentum 20 kg m s -1.

g) A man uses a crowbar of length 1.5 m to raise a load of 75 kgf by putting a sharp edge below the bar at a

distance of 1m from his hand. Calculate load arm, effort arm, mechanical advantage and the effort needed.

h) A ball of mass10 g falls from height of 5 m. It rebounds from the ground to a height of 4 m. Find:

i) the initial potential energy of the ball,

ii) the kinetic energy of the ball just before striking the ground,


iii) the kinetic energy of the ball after striking the ground, and

iv) the loss in the kinetic energy

( Take g = 9.8 m s-2)

i) Calculate the mass of a body, which is moving with an acceleration of 1.4ms-2, when a force of 25 kgf

acts on it.[g = 9.8 ms-2]

j) A mechanical hammer does a work of 60 J per strike. Calculate the power of the hammer in SI units if it

strikes a metal object at rate of 20 strikes per minute.

PREPARE FOR PO 1 EXAM IN JULY

CHEMISTRY

QUESTION BANK 2

CHAPTER- MOLE CONCEPT , ANALYTICAL CHEMISTRY AND HYDROCHLORIC ACID

MOLE CONCEPT

1.The percentage composition of a gas is :

Nitrogen 82.35%,hydrogen 17.64%

Find empirical formula of the gas.[N=14,H=1]

2.Aluminium Carbide reacts with water according to the following equation:

Al4C3+12H2O 4Al(OH)3+3CH4

i. What mass of aluminium hydroxide is formed from 12g of aluminium carbide?

ii. What volume of methane at STP is obtained from 12g of aluminium carbide?

[relative molecular weight of Al4C3=144,Al(OH)3=78]

3. i. If 150cc of gas A contains X molecules ,how many molecules of gas B will be present in 75cc of B?

The gases A and B are under the same conditions of temperature and pressure.

ii.Name the law on which the above problem is based.

4. i. Propane burns in air according to the following equations

C3H8 + 5O2 3CO2 +4H2O

What volume of propane is consumed on using 1000cm3 of air considering only 20% of air contains oxygen?

ii. The mass of 11.2 litres of a certain gas at s.t.p is 24g find the gram molecular mass of the gas

5. A gas can hold 1 kg of hydrogen at room temperature and pressure:

i. Find the moles of hydrogen present.

ii. What weight of CO2 can the cylinder hold under similar conditions of temperature and

pressure?(H=1,C=12,O=16)

iii. If the number of molecules of hydrogen in the cylinder is X calculate the number of CO2 molecules in the

cylinder under the same conditions of temperature and pressure

iv. State the law that helped you arrive at the above result..


6. i. A gas of mass 32g has a volume of 20 litres at S.T.P .Calculate the gram molecular weight of the gas

ii. How much calcium oxide is formed when 82g of calcium nitrate is heated? Also find the volume of

nitrogen dioxide evolved:[Ca=40,N=14,O=16]

2Ca(NO3)2 2CaO +4NO2 +O2

7. A compound of X and Y has the empirical formula XY2 .Its vapour density is equal to its empirical formula

weight. Determine its molecular formula.

8. A gaseous hydrocarbon contains 82.76% of carbon. given that its vapour density is 29,find its molecular

formula[C=12,H=1]

9. i. Calculate the number of gram atoms in 4.6 grams of Sodium(Na=23)

ii. Calculate the percentage of water of crystallization in CuSO4. 5H2O.[Cu=64,S=32,O=16]

iii. the mass of 11.2litres of a certain gas at S.T.P is 24g .Find the gram molecular mass of the

gas.

10.The equation : 4 NH3 + 5 O2 4NO +6H2O. represents the catalytic oxidation of ammonia. If 100cm3

of ammonia is used , calculate the volume of oxygen required to oxidize the ammonia completely .

11. A gas cylinder contains 12x1024 molecules of oxygen gas, if the Avogadro’ s number is 6x 1023 calculate :

i. The mass of oxygen present in cylinder.

ii. The volume of oxygen at S.T.P. present in the cylinder (O=16)

12. Calculate the mass of calcium that will contain the same number of atoms as are present in 3.2g of sulphur.

[S=32,Ca=40]

13. If the empirical formula of a compound is CH. And its vapour density is 13, find the molecular formula of

the compound.

14. If 6 litres of hydrogen and 4 litres of chlorine are mixed and exploded and if water is added to the gases

formed ,find the volume of residual gas.

15.Consider the following reactions and based on the reaction answer the question that follows:

(NH4)2Cr2O7 N2+ 4H2O+Cr2O3

Calculate :

i. The quantity of moles of (NH4)2Cr2O7if 63g of (NH4)2Cr2O7 is heated.

ii. The quantity of moles of nitrogen formed.

iii. The volume in litres or dm3 of nitrogen evolved at S.T.P

iv. The mass in grams of Cr2O3 formed at the same time .[H=1,Cr=52,N=14]

16. Find the ratio between the number of molecules in 2g of hydrogen and 32 g of oxygen.

17. Define the following terms:

i. Avogadro’s law

ii. Gay Lussac’s law

iii. Empirical formula


TOPIC: ANALYTICAL CHEMISTRY

Q1. Distinguish the following and pairs of compounds using the test given in brackets:

(i) Iron (II) sulphate and iron (III) chloride (using NH4OH)

(ii) A lead salt and a zinc salt (using excess of NH4OH)

(iii) Lead salt solution and calcium salt solution (using excess of NaOH)

(iv) Dilutesulphuric acid and dilute hydrochloric acid (using barium chloride solution)

Q 2. How will you distinguish ammonium hydroxide and sodium hydroxide using copper sulphate solution.

Q 3.State your observation when ammonium hydroxide is added drop by drop then in excess to each of the

following case:

(i) Copppersulphate solution

(ii) Zinc nitrate solution

(iii) Lead nitrate solution

(iv) Calcium nitrate solution

Q 4. Identify the cations in each of the following case:

(i) NaOH solution when added to the solution (A) gives a reddish brown precipitate.

(ii) NH4OH solution when added to the solution (B) gives a white precipitate which does not dissolve in

excess

(iii)NaOH solution when added to solution (C) gives a white ppt which is soluble in excess.

(iv) NaOH solution when added first drop by drop then in excess to solution (W)gives white ppt which

remains insoluble.

(v) Calcium hydroxide is added to salt Z and then heated, a pungent smelling gas turning moist red litmus

paper blue.

Q 5. Sodium hydroxide is added to the solutions containing the ion mentioned in list X. List Y gives the details

of precipitate . Match the ions with their coloured precipitates

S.N. LIST ‘X’ LIST ’Y’

(i) Pb2+ A. reddish brown

(ii) Fe2+ B. White insoluble in excess

(iii) Zn2+ C. Dirty green

(iv) Fe3+ D. White soluble in excess

(v) Cu2+ E.White soluble in excess

(vi) Ca2+ F. Blue

Q 6. Give balanced chemical equation for the following reactions

(i) NaOH solution is added first little then excess to Zinc sulphate solution

(ii) NaOH solution is added first little then excess to Ferrous sulphate solution

(iii) NH4OH solution is added first little then excess to copper sulphate solution

(iv) Ammonium salts are heated with NaOH solution

(v) NaOH solution is added first little then excess to copper sulphate solution

(vi) NH4OH solution is added to Lead nitrate solution


(vii) Aluminium reacts with boiling and dilute NaOH

(viii) Zinc reacts with hot and concentrated NaOH

(ix) Aluminium oxide reacts with NaOH

(x) Lead oxide reacts with KOH

TOPIC : HYDROGEN CHLORIDE

Q1.State your observation when:

(i) Dilute hydrochloric acid is added to lead nitrate solution and the mixture is heated.

(ii) Dilute hydrochloric acid is added to copper carbonate.

(iii) Dilute hydrochloric acid is added to sodium thiosulphate .

(iv) Dilute hydrochloric acid reacts with iron(II) sulphide.

Q2. Certain blank spaces are left in the following table and these are labeled as A,B and C. Identify each of

them.

Lab preparartion of Reactants used Products formed Drying agent Method of

collection

HCl gas NaCl+ H2SO4 A B C

Q3.Identify the gas in each of the following cases

(i) Dilute hydrochloric acid reacts with sodium sulphide.

(ii) Dilute hydrochloric acid reacts with potassium sulphite.

(iii) Dilute hydrochloric acid reacts with sodium bicarbonate.

(iv) Concentrated hydrochloric acid reacts with manganese dioxide.

(v) Dilute hydrochloric acid reacts with metal zinc.

Q4. For the lab preparation of hydrochloric acid in the laboratory

(i) Why is the direct absorption of hydrogen chloride gas in water not feasible?

(ii) What arrangement is done to dissolve hydrogen chloride in water?

(iii) Write the balanced chemical equation for the laboratory preparation of hydrogen chloride gas.

(iv) Name the acid used for the preparation of hydrogen chloride gas in the laboratory. Why is this

particular acid preferred to other acids?

Q 5.Write balanced chemical equation for following reactions

(i) Dilute hydrochloric acid + sodium thiosulphate

(ii) Conc. hydrochloric acid + Manganese di oxide

(iii) Conc. hydrochloric acid + potassium permanganate

(iv) Conc. hydrochloric acid + red lead


(v) Dilute hydrochloric acid + sodium sulphide

(vi) Dilute hydrochloric acid + magnesium ribbon

(vii) Conc. hydrochloric acid + bleaching powder

Q 6. Give reason

(i) Dry HCl does not behave as acid.

(ii) HCl gas is collected through inverted funnel in water.

Prepare for P O1 examination in July

Note: This work is to be done in separate Project file.

BIOLOGY

Section – A

Q1. Name the following:-

a) The vein which drains the blood from intestine to liver.

b) The tip of the chromosomes which are rounded and sealed.

c) A membrane that disappears during late prophase.

d) The extinct representative of modern man.

Q2.Define the following terms:-

a) Vestigial organs

b) Population density

c) Industrial melanism

d) Evolution

e) Homeostasis

Q3.Differentiate between the following:-

a) LUBB and DUP (Names of valves whose closure produce sound)

b) RBC and WBC (shapes)

c) Natality and Mortality (definition)

d) Tubectomy and Vasectomy (definition)

e) Allosomes and Autosomes(definition)

Q4.Give the reason for the following:-

a) Why are capillaries thin walled?

b) Blood flows in arteries in spurts and is under pressure.

c) Evolution of giraffe’s neck according to Darwins theory of Natural selection.

Q5.Draw a neat diagram of the following:-

a) Tubectomy

b) Vesectomy

c) Stages of Mitosis

d) Structure of DNA molecule


Q1.Draw a neat and beautiful chart on any of the following topics:-

a) Dihybrid cross of Mendel and its results (Roll number-1-6)

b) Inheritance of Haemophilia and colourblindness (Roll numbers 7-13)

c) Pollution and its impacts (Roll number 14-20)

d) Evolution of man (Roll number 21- 27)

e) Industrial Melanism ( Roll number- 28- 34)

f) Comparison of Lamarckism and Darwinism (example of giraffe) (Roll number- 35-last roll number)

Note:-The above said charts will be evaluated for half yearly/ final practical for 10 marks.


ENVIRONMENTAL APPLICATION

Section – A

(To be answered in class note book)

Q1. Explain any five methods of soil conservation.

Q2. What is soil erosion? Explain any two effects of soil erosion.

Q3. Describe five ways of combating deforestation.

Q4. Define E-waste.

Q5. What is incineration? State its two advantages.

Section – B

Q1. Make a beautiful project file of fifteen pages which should include proper explanation with pictures based

on any one topic. The topics are:-

a) Problems of solid waste management.

b) Landfill emissions and their impact on the environment.

c) Plan of rain water harvesting strategy in your locality.

d) Draught and its influence on soil quality.

e) Life history of a tortoise.

Note:-The above project will be evaluated for half yearly/ final practical for 10 marks.


COMMERCIAL APPLICATIONS

1. Project 1. – Study the working of the commercial banks in India by studying the working of the branch

office of any Public sector commercial bank such as SBI, BOB, ICICI, IDBI AND THE POST

OFFICE.

2. Project 2. –Study the product life cycle (PLC). Using ‘JIO’ sim explain in which part of the PLC are they

giving valid justification. (with all other details viz history, marketing, competition, plans etc.)

3. All the short and long answers from chapters 1 to 5 discussed in the class. (Question sheets attached for

chapters 1 – 5)

Note: REVISE FOR THE PO-1 EXAM IN JULY 2018.


E.V.S.

Q. 1 Define the following –

(i) Sustainable city (ii) Biogas (iii) Compositing

(iv) Biotechnology (v) Incineration (vi) Pollution

Q.2 Differentiate between the following -

(i) Biodegradable waste and Non-biodegradable waste.

(ii) Compositing and Vermi Compositing.

Q.3 With suitable illustration give a brief account on -

(i) Venture Scrubber

(ii) Cyclone collector

Q.4 Answer the following.

(i) What is the present population of the world?

(ii) What are the two most popular ways of waste disposal?

(iii) What do you understand by community participation?

(iv) What is meant by demographic transition?

(v) Mention any two ways poverty can be reduced.

Q.5 Expand the following –

(i) CSWCRTI (ii) RGIS (iii) NWDPRA

(iv) NOAPS (v) RSVY

Q.6 Discuss in detail how biotechnology can help in waste management.

Q.7 What are the four tenets of waste management? Discuss.

Q.8 Explain how migration from rural areas can be checked.

Q.9 Write short notes on (Point-wise)

(i) Ralegaon Siddhi

(ii) Sukhomajri Model Village

Q.10 What are the three levels of storage of waste before its disposal?

Q.11 Justify ‘the sustainable cities – the need of the hour’

Project – (1) Ralegaon Siddhi

(2) Solid Waste Management

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