Role of Atmosphere

Q.

Write a short note on the atmosphere.

Q.

20 (a) Replace the following with a word or phrase

air in motion.

Q. Which one of the following may have alien life because of a very conducive environment to life?

1. Jupiter
2. Mars
3. Europa-The Jupiter's Moon
4. Moon-The Earth's Moon

Q.

During the night, an area of low pressure is formed on which of the following?

1. Land

2. Water

3. Both land and water

4. Cannot be ascertained

Q. What is the most common element found in the Earth's atmosphere?

1. Oxygen
2. Hydrogen
3. Nitrogen
4. Carbon

Q.

The air that covers the whole of earth like a blanket is called _______.

1. hydrosphere

2. lithosphere

3. biosphere

4. atmosphere

Q. The life supporting gases such as oxygen, carbon dioxide and nitrogen are chiefly concentrated in the ___.

1. troposphere
2. exosphere
3. ionosphere
4. stratosphere