In $1984$,the Bhopal gas tragedy took place because methyl isocyanate:

$A$ location with luxuriant growth of lichens on the trees indicates that the

All of the following contribute to pollution $EXCEPT$:

Increase in the concentration of pollutants in higher trophic levels is called

In agriculture,improper drainage of water leads to:
$I-$ The soil becomes waterlogged.
$II -$ The soil surface draws up salts from the water.
$III -$ Salts are deposited as a thin crust on the land surface.
$IV -$ Salts start accumulating around the roots of the plants.
$V -$ The increasing concentration of salts becomes favorable for crop growth.
$VI -$ It is highly beneficial for agriculture.
Which of the above statements are correct?

$A$: Nitrate and phosphate discharge in a water body causes eutrophication.
$R$: This increases the inorganic content in the water body and hence the growth of algal blooms.