The upper stratosphere,consisting of the ozone layer,protects us from the sun's radiation that falls in the wavelength region of

Which of the following is a sink for $CO$?

The concentration of fluoride,lead,nitrate and iron in a water sample from an underground lake was found to be $1000 \ ppb, 40 \ ppb, 100 \ ppm$ and $0.2 \ ppm,$ respectively. This water is unsuitable for drinking due to high concentration of:

Which among the following has the highest concentration of $PAN$?

Explain the damage to the troposphere caused by $CO$ and $CO_2$.

The cause of water pollution is due to