How deep should nuclear waste after sufficient pre-treatment be buried (in shielded containers) within the rocks below the earth’s surface?
Without greenhouse effect the average temperature at surface of Earth would have been
[A] -0 ℃
[C] -18 ℃
Earth’s present average temperature is:
[B] 15 ℃
What part of the incoming solar radiation actually comes through and falls on Earth’s surface heating it?
Which gas contributes the maximum to the greenhouse effect?
What is the contribution of methane gas to the total global warming?
During the past century, the temperature of earth has increased by _____.
[A] 0.6 ℃
[B] 5 ℃
[C] 6 ℃
Greenhouse gases absorb _____ radiation from the earth and emit it again towards the earth. The cycle continues till the earth’s surface has no________ radiation to emit,
[A] long wave (infrared), long wave
[B] short wave (uv), long wave
[C] long wave (infrared), short wave (uv)
[D] short wave (uv), short wave (uv)
Rise in temperature is leading to deleterious changes in the environment and resulting is odd climatic change such as:
[A] Ozone depletion
[B] Greenhouse effect
[C] Water logging
[D] El Nino effect
We can control global warming by the following means except:
[A] Cut down use of fossil fuel
[B] Slow down growth of human population
[C] Improving efficiency of energy uses
Thickness of ozone is measured in terms of:
Bad ozone is formed in:
Which of the following bio molecule absorbs UV radiation?
[C] Both a and b
Good ozone is found in:
Ozone degradation is done by: