What is the meaning of the term 'Strato'?

Which of the following is true about nitric oxide?

Presence of which of the following can be felt near the photocopier, television set, microwave oven, etc.?

The extension of troposphere above the Earth's surface is

What is the source of chlorofluorocarbons?

Which layer of atmosphere is first exposed to sunlight?

Majority of the UV rays are screened out by

The energy of sunlight is converted into heat by

Most of the dust particles and water vapors are present in

Which of the following comes mainly due to the combustion of fuel used in motor vehicles?

Which of the following causes headache and dizziness and can even cause death if inhaled for a long time?

Which of the following is an excellent heat absorber and causes global warming?

Anything that destroys some part of the environment is called

Which of the following is the Third layer of atmosphere as one moves upwards from the Earth's surface?

Which of the following is the fourth layer of atmosphere as one moves upwards from the Earth's surface?

The pH of normal rainwater is

Approximately, what percentage of water vapor is contained by the air in the tropical rain forest?

Which of the following is true about carbon monoxide?

Which of the following is not true about sulfur dioxide?

Formation of most of the clouds is in