State the measures to control environmental pollution.

Write a short note on the effect of Global warming and Greenhouse effect on environment.

Which of the following statements about the depletion of ozone layer is correct?

Which of the following is responsible for the greenhouse effect?

Lead is considered as

Provide the correct statement for the following: (Use $T$ for True and $F$ for False statements.) $(1)$ Plants obtain elements like carbon,hydrogen,and oxygen from air and water. $(2)$ Plants obtain elements like $N, P, K, Ca$ from the soil. $(3)$ Compound fertilizers contain nitrogen as ammonium nitrate,phosphorus as $PCl_3$,and potassium as $KO_2$. $(4)$ The use of $NPK$ fertilizers increases the production of crops and vegetables in the soil.