Aerosols reduce primary productivity by

Which of the following strategies is not a correct approach to reduce global warming?

Which act was enacted by the Government of India to protect and improve the quality of our environment and to control environmental pollution?

Match the following columns.

Column-$I$	Column-$II$
$(p)$ $CFC$	$(v)$ Troposphere
$(q)$ Bad ozone	$(w)$ Plastic
$(r)$ Good ozone	$(x)$ Ozone depletion is occurring widely
$(s)$ Non-biodegradable waste	$(y)$ Stratosphere
	$(z)$ Paper,leaf

To which countries do developed countries export e-waste?

Arrange the following options in ascending order of their $BOD$ value.
$I.$ Sample of highly polluted pond water.
$II.$ Sample from unpolluted pond water.
$III.$ Distilled water.