The result of ozone hole is</h2></div>

Which of the following is a method of solid waste disposal?

What suggestions will you give to save an imbalanced ecosystem ?</h2></div>

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

Which of the following describes the destruction of the ozone by chlorofluorocarbons? </h2></div>

Continuous sewage flow into a stream would lead to</h2></div>

Which of the following methods of waste management produce energy?</h2></div>

Producer gas is obtained through the process of:</h2></div>