More than $70\; \%$ of the world's freshwater is contained in

The pesticide used as a preventive measure in buildings is

Match the following columns:

Column-$I$	Column-$II$
$(a)$ Environment Act	$(1)$ $1974$
$(b)$ The Air Act	$(2)$ $1987$
$(c)$ The Water Act	$(3)$ $1986$
$(d)$ Amendment in The Air Act	$(4)$ $1981$

Identify the correct statements from the following:
$(i)$ $DDT$ is non-biodegradable.
$(ii)$ Heavy metals are responsible for biomagnification.
$(iii)$ High concentration of $DDT$ disturbs calcium metabolism in birds.
$(iv)$ The concentration of $DDT$ in large fish can be up to $2 \, ppm$.

Chipko movement was launched for the protection of

Select the appropriate option for $FOAM$.