Pollution of Ai...

As proved by many studies, the greenhouse effect is rapidly increasing because of increase in the concentration of carbon dioxide. In the given graph, the increase in carbon dioxide concentration is shown. What could be $$X$$ corresponding to it?
(i) Rate of photosynthesis in plants
(ii) $$pH$$ of the oceans
(iii) Water level of ocean
(iv) Average global temperature of earth

Smog is an example of:

Soap and detergents are the source of organic pollutants like:

___________ is the phenomenon where the earth retains heat.

The green house gases, otherwise called radioactively active gases includes

Read the given passage and select the correct option. X is a gas which occurs both in the earth's upper atmosphere (stratosphere) and at earth's ground level. Y are the substances which react with X and destroy the same. Beijing protocol was held to lay down steps to reduce Y released by developing and developed countries. Destruction of X can lead to diseases like cancer in humans.

Which among the given is not a natural source of air pollution?

Why are the environmental scientist worried about the effect of $$Q$$ on $$P$$?

Carbon dioxide is called greenhouse gas because 

Simple inorganic substances released into environment is reused by ______.