Loss of forest,urbanization,and increasing pollution are all due to:

Match the following and choose the correct combination from the options given:
Column $I$ | Column $II$
$(1)$ $DDT$ | $(p)$ $CO, CO_2$
$(2)$ $PAN$ | $(q)$ Smog
$(3)$ Acid rain | $(r)$ Biological magnification
$(4)$ Global warming | $(s)$ $SO_2$

What is the full form of $FOAM$?

Which of the following is not a conventional source of energy?

Biological magnification refers to

Polyblend is mixed with $\underline {i}$ and is used to lay $\underline {ii}$.