Mention any three human activities which are responsible for depletion of the ozone layer.</h2></div>

One of the most dangerous radioactive pollutant to<i> Homo sapiens</i> is</h2></d…

Fertilisers are a source of which types of pollution?</h2></div>

Producer gas is formed by passing over hot biomass.</h2></div>

Which one of the following ways can be used to control global warming?

Answer the following.<br> How does the pollution occur due to vehicles? Gives the names of vehicles causing least …

<span>Advantages of organic farming is (are)</span></h2></div>

Use of ________ in agricultural activities has grown quite a lot hazardous ammonia gases in the atmosphere.<br> &l…