According to a $1990$ report,Delhi ranked $........$ among the $41$ most polluted cities in the world.

The Government of India has introduced a concept to work closely with local communities for the protection and management of forests,which is called:

The $UN$ Conference of Parties on climate change in the year $2011$ was held in

Increase in concentration of a toxicant at successive trophic levels is called

Which of the following are correctly matched?
$I.$ Arsenic poisoning $-$ Black foot disease
$II.$ Secondary effluent treatment $-$ Biological process
$III.$ Pyrolysis $-$ Solid soil waste disposal
$IV.$ Tubifex $-$ Water pollution indicator
$V.$ Biomagnification $-$ Degradable pollutants

Integrated organic farming has been adopted in India by