In stratosphere

Find the wrong one out

(1) Ozone is formed by the action of UV rays on molecular Oxygen

(2) Ozone is degraded there

(3) There is a balance between formation and degradation of ozone

(4) There will be accumulation of Chlorofluorocarbons or CFCs which are acted upon by UV rays and protects the ozone layer.

(1) Release Cl atoms in stratosphere

(2) Used as refrigerant

(3) Cl of CFCs degrade ozone releasing molecular oxygen

(4) Cl atoms released out of CFCs are also used up during degradation of Ozone

(1) Due to no formation of Ozone

(2) Due to high formation and low degradation of ozone

(3) Due to low formation and high degradation of ozone

(4) Due to no degradation of ozone

(1) Damages DNA and causes mutation

(2) Ageing of skin and damage to the skin cells and cause various types of skin cancer

(3) Inflammation of cornea, cataract

(4) All of these

(1) UV-A

(2) UV-B

(3) UV-C

(4) All of these

(1) Over Cultivation

(2) Unrestricted Grazing

(3) Deforestation, Poor Irrigation Practices

(4) Proper resource Utilization and Maintenance

(1) Organic Farming

(2) Water logging

(3) Soil salinity

(4) Both 2 and 3

(1) Due to increased urbanisation, desertification is the major problem.

(2) Irrigation without proper drainage of water leads to waterlogging in the soil, affects the crops

(3) Waterlogging affects the crops and hence the agriculture

(4) Waterlogging cause salt to go downwards

(1) 20%, 10%

(2) 60%, 12%

(3) 40%, 1%

(4) 30%, 2%

(1) At the beginning of the twentieth century, forests covered about 30% of the land of India

(2) By the end of the twentieth century, forest area shrunk to 21.54%

(3) According to National Forest Policy of India has recommended 33% forest cover for the plains.

(4) According to National Forest Policy India(1982) has recommended 76% forest cover for the hills