Download - An Introduction to Environment
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ENVIRONMENT An introduction
“Nature is the art of God”Thomas Browne
Religio Medici1635
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What IS environment???
•All those things which are naturally exiting around us•All living and non-living things occurring naturally on Earth or some region there of
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Natural components
Human made components
Activities and interactions of human beings
Major components of the Environment
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Natural Components•Air•Water•Soil•Plants
Human-Made Environment•Bridges•Parks•Road•Buildings
Human Activities and Interactions•Clearing forests for agriculture and shelter•Extracting minerals from the earth•Making dams for producing electricity.
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What are the Environmental Process?
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How Environment Remains Balanced?
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Keep Environment healthy Supply oxygen
Plants play an active role
in Environment
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Importance of Oxygen for Us and Our environment?
Animals and plants use oxygen forRESPIRATION
Oxygen helps us to burn the food we eat to release energy
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Interesting facts about growing plants
Oxygen Production
●The amount of oxygen produced by an acre of trees per year equals the amount
consumed by 18 people annually. ●One tree produces nearly 260 pounds of
oxygen each year.●A single tree produces approximately 260 pounds of oxygen per year. That means two
mature trees can supply enough oxygen annually to support a family of four!
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Interesting facts about growing plants
Carbon dioxide
●One acre of trees removes up to 2.6 tons of carbon dioxide each year.
● One tree can absorb as much carbon in a year as a car produces while driving 26,000
miles.● Over the course its life, a single tree can
absorb one ton of carbon dioxide.
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Interesting facts about growing plants
Drinking water
●Water originating in our national forests provide drinking water for over 3400
communities, and approximately 60 million individuals.
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Lets have a look and talk about our beautiful motherland.
Bangladesh is a South-East Asian
Country•Our country is covered by 17 national park and 17 wildlife sanctuaries.•We have only 12% forestland which is much lower than the required rate of 25%.
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Natural Resources •Bay of Bengal•World’s largest sea beach- Cox’s bazar•World’s largest mangrove forest Sundarban•Biggest cat Royal Bengal tiger•Rainforest: Lawachara
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Bangladesh: Wildlife
Bangladesh is home to roughly :
● Amphibian: 53 species● Reptile: 139 species
● Marine Reptiles: 19 species● Mammals: 116 species
● Marine mammals: 5 species● Birds: 650 species
Species facing serious threats of extinction:
● The Bengal tiger● Asian elephant● Hoolock gibbon
● Asian black bear ● Other flagship species.
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1. 1. Reduce the usage
of your electrical
appliances
2. Drive your car less
3. Reduce the usage of
your wooden stove
4. Maintain a healthy
eco system
5. Reduce usage of
chemicals and
pesticides
6. Recycle the waste
products
7. Reduce carbon
footprints
8. Grow your food
locally
9. Reduce contaminants
10.Avoid the pollution
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”Look deep into nature, and then you will understand everything better”
~ Albert Einstein~