Which environmental problem is most closely linked to increased carbon dioxide emissions?
Rising global temperatures over long periods
Different air pollutants cause different environmental problems, so the key is to trace which gas drives which effect.
Carbon dioxide is a greenhouse gas: it allows incoming sunlight to pass but absorbs and re-radiates the longer-wave heat that the Earth tries to emit back to space.
As carbon dioxide emissions rise, more outgoing heat is trapped in the atmosphere, strengthening this greenhouse effect.
The direct long-term consequence is a sustained rise in average global temperatures, that is global warming, over many years.
Acid rain on buildings is caused mainly by sulphur dioxide and nitrogen oxides forming acids in the atmosphere, not by carbon dioxide.
Thinning of the ozone layer is caused by chlorofluorocarbons (CFCs) releasing chlorine that destroys ozone, again unrelated to carbon dioxide.
Soil erosion in fields results from wind, water flow and poor land management, so it is a physical land process rather than a gas emission effect.
Hence, the answer is Rising global temperatures over long periods.
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Important Questions from Environment Education
Also refers to global warming
EVS is an integration of
Select an incorrect statement:
Persistence of vision in a human eye is
Given below are two Statements
Statement (I): Non formal education processes and programmes should, in the long run, lead to creating awareness, in individual and society of prevailing environmental solutions.
Statement (II): Non formal education is intended for all age groups and sections of society
In the light of the above statements check the most appropriate answer.
