The marshlands of integrated waste water management performs
(1) Sanctuary with a high level of biodiversity in the form of fishes, animals and birds
(2) Appropriate plants, algae, bacteria neutralize, absorb and assimilate the pollutants
(3) Both A and B
(4) Act as ecological sanitation
Bad Ozone
(1) Formed in lower atmosphere
(2) Formed in Troposphere
(3) Harms plants and animals but is not lethal
(4) All of these
Good ozone is
(1) Found in the upper strata of the atmosphere
(2) Found in Stratosphere
(3) Acts as a shield to UV light
(4) All of these
UV rays are highly injurious to living organisms
(1) Because DNA and Protein preferentially refract UV light
(2) Because DNA and Protein preferentially radiate UV light in the form of heat energy
(3) Because DNA and Protein preferentially absorb UV light and as a result chemical bonds are broken
(4) Both B and C
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.
CFCs
Find the wrong one out.
(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
Over Antarctica region, the ozone hole is
(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
UV-B
(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
Soil Erosion and desertification least likely resulted in which of the following cases?
(1) Over Cultivation
(2) Unrestricted Grazing
(3) Deforestation, Poor Irrigation Practices
(4) Proper resource Utilization and Maintenance
Which of the following have come into wake of the green revolution?
(1) Organic Farming
(2) Water logging
(3) Soil salinity
(4) Both 2 and 3