Sustainable Development

Question 1

significance of environment

Answer 1

-environment offers resources for production
-environment assimilates waste
-environment sustains life
-environment enhances quality of life

Question 2

environmental crisis

Answer 2

-carrying capacity of the environment: balance between the rate at which resources are exploited and the rate at which resources are regenerated
-absorptive capacity of the environment- the ability of the environment to absorb the waste from production and consumption

Question 3

causes of environmental crisis

Answer 3

-population explosion
-widespread poverty
-increasing urbanization
-increasing use of pesticides, insecticides, and chemical fertilizers
-rapid industrialisation
-a multiplicity of motor vehicles

Question 4

-degradation of lands

Answer 4

-erosion of soil caused by tree felling
-shifting cultivation leading to deforestation
-Forest fires leading to loss of vegetation
-excessive grazing leading to a loss in vegetation

Question 5

air pollution

Answer 5

-vehicular emissions
-industrialisation

Question 6

water pollution

Answer 6

-industrial waste
-domestic sewerage
-agricultural runoff
-thermal powerhouse

Question 7

strategies for sustainable development

Answer 7

-reliance on non-conventional sources of energy
-LPG, Gobar gas in Rural areas
-CNG in urban areas
-wind power
-mini hydel plants
-traditional knowledge and practices
-bicomposting