The ozone layer or ozone shield is a region of Earth’s atmosphere that absorbs most of the Sun’s ultraviolet (UV) radiation. Which layer of the atmosphere contains ozone layer?

The natural process of the atmosphere heating through the trapping of re-radiated infrared radiation is known as

Most of the oil that we use is imported into our country from other nations. The oil is carried in huge sea going tankers. Sometimes these tankers get damaged and the oil leaks into the oceans and seas. What is such an accidental discharge of oil into water bodies called? 

Petroleum, coal and natural gas are all ...

Which country currently emits the most greenhouse gases?

How long does it take for carbon dioxide (CO2) in the atmosphere to disperse?

How much of the world's water is available for human use? 

Global warming is caused ...

To create just 1 kilogram of consumer goods, manufacturers create _____ kilograms of waste. 

For every tonne of paper recycled, we save ...

________is the fourth step in waste management.

_______is the first 'R' in the Three R's.

The PH range of acid rain is _____.

This is characterized by excessive plant and algal growth due to the increased availability of one or more limiting growth factors needed for photosynthesis, such as sunlight, carbon dioxide, and nutrient fertilizers.

In purifying of potable water the coagulant used is

Which day is Earth Day?

Which was the first book to set the stage for society to change in becoming more environmentally aware?