$5^{\text{th}}$ $June$ is celebrated as:

The pollution in a city like $Delhi$ may be controlled to a great extent by:

Match the items given in Column $I$ with those in Column $II$ and select the correct option given below:

Column $I$	Column $II$
$(a)$ Eutrophication	$(i)$ $UV-B$ radiation
$(b)$ Sanitary landfill	$(ii)$ Deforestation
$(c)$ Snow blindness	$(iii)$ Nutrient enrichment
$(d)$ Jhum cultivation	$(iv)$ Waste disposal

List all the wastes that you generate at home,school,or during your trips to other places. Which could you very easily reduce? Which would be difficult or rather impossible to reduce?

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

Which of the following is an inexhaustible resource?