media & environment

7/30/2019 Media & Environment

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Dr Kiran Khanna


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the surrounding external conditions influencing development orgrowth of people, animal or plants; living or working conditionsetc.

1. What is Surrounded Living in general and man in particular.

2.By what Surrounded The physical attributes objects the environment consisted of only physical aspects of the

planted earth' land, air and water as biological communities. Asthe time passed on man extended his environment through hissocial, economic and political functions.

3. Where Surrounded nature that physical component of the plant earth, viz land, air, water etc., support and affect life in the biosphere.


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A persons environment consists of the sumtotal of the stimulation which he receivesfrom his conception until his death.

The term environment is used to describe, inthe aggregate, all the external forces,influences and conditions, which affect thelife, nature, behaviour and the growth,

development and maturity of livingorganisms.


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1. Atmosphere: the protective blanket of gases, surrounding the

earth:

(a) It sustains life on the earth.

(b) It saves it from the hostile environment of outerspace.

(c) It absorbs most of the cosmic rays from outerspace and a major portion of theelectromagneticradiation from the sun.

(d) It transmits only here ultraviolet, visible, nearinfrared radiation (300 to 2500nm) and radio waves.

The atmosphere is composed of nitrogen andoxygen. Besides, argon, carbon dioxide and trace gas


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2. Hydrosphere: The Hydrosphere comprises all types of water

resources oceans,seas, lakes, rivers, streams,reservoir, polar icecaps, glaciers, and groundwater.

(i) Nature 97% of the earths water supply is inthe oceans,

(ii) About 2% of the water resources is locked inthe polar icecaps and glaciers.

(iii)Only about 1% is available as fresh surfacewater-rivers, lakes streams, andground water fitto be used for human consumption and otheruses.


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3. Lithosphere: Lithosphere is the outer mantle of the solid

earth. It consists of minerals occurring in theearths crusts and the soil e.g. minerals,organicmatter, air and water.

4. Biosphere: Biosphere indicates the realm ofliving organisms and their interactions with

environment, viz atmosphere, hydrosphereand lithosphere.


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1. Physical elementsspace, landforms, water bodies, climate soils,rocks and minerals.

determine the variable character of the human

habitat, its opportunities as well as limitations. 2. Biological elements plants, animals, microorganisms and men

constitute the biosphere.

3. Cultural elementseconomic, social and political elements areessentially manmade features, which makecultural milieu.


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Environment Issues Being of InternationalImportance Ozone layer depletion, global warming, acid

rain, marine pollution

Problems Cropped in The Wake ofDevelopment Explosively Increase in Pollution Need for An Alternative Solution Need To Save Humanity From Extinction Need For Wise Planning of Development


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Growing Population Poverty Agricultural Growth Need to Ground water Development And Forests Degradation of Land Reduction of Genetic Diversity Evil Consequences of Urbanisation Air and water Population

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