Second highest layer of Earth's atmosphere is
Aeroplanes fly in:
Atmospheric pressure decreases with the
Layer of atmosphere which separates stratosphere and troposphere is known as
Ozone layer is part of
Which is not part of greenhouse gases
Second most abundant constitute of dry air in terms of volume after nitrogen is
Which of the following is the reason of global warming
The altitude of stratosphere is:
Ozone is a gas found in the__________layer: