What do global problems mean? Which are the global problems that organisms are facing today?<br> </h2></d…

High BOD indicates</h2></div>

List at least three gaseous air pollutants that are emitted from automobiles and industries.</h2></div>

Describe this topic:<br> Effect of sewage discharge on some important characteristics of a river</h2><div…

A successful forest conservation strategy should involve</h2></div>

Ozonosphere occurs at height of</h2></div>

Mention the information that health workers derive by measuring BOD of a water body.</h2></div>

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