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Define the following terms :<br> Air pollution </h2></div>

Radioactive substances can cause</h2></div>

To dispose of which waste are the deep pits dug in desert areas or in the sea bottom?

Incomplete burning of petrol or diesel in vehicles creates .......... gas which is very poisonous. </h2>&…

Finely divided solid, remaining either with in solution or in suspension is known as<span><br> </span>…

Which component of the cooked food should not be disposed off into the drain?<br> </h2></div>

Draw a flow chart to show how deforestation leads to desertification. </h2></div>