Which of the following is the main factor of water pollution?</h2></div>

Which gas is emitted by the combustion of fossil fuels?</h2></div>

The amount of biodegradable organic matter in sewage water can be estimated by measuring</h2></div>

Which is not correct approach to reduce global warming?</h2></div>

Explain giving two reasons (b) What is organic farming? Why is it suggested to switch over to organic farming?</h2&gt…

What happen when the destruction of the ozone layer increases?</h2></div>

What causes effects of ozone layer?<span><br> </span></h2></div>

Study the following ststements regarding organic farming and select the correct ones.<br> (i) It utilities genetic…