7.3.1-Sade

Question 1

Atmosphere

Answer 1

Definition

the envelope of gases surrounding the earth or another planet.

Question 2

Altitude

Answer 2

is the height above sea level

Question 3

Exosphere

Answer 3

the outermost region of a planet’s atmosphere.

Question 4

Thermosphere

Answer 4

the region of the atmosphere above the mesosphere and below the height at which the atmosphere ceases to have the properties of a continuous medium. The thermosphere is characterized throughout by an increase in temperature with height.

Question 5

mesosphere

Answer 5

the region of the earth’s atmosphere above the stratosphere and below the thermosphere, between about 30 and 50 miles (50 and 80 km) in altitude.

Question 6

Stratosphere

Answer 6

the layer of the earth’s atmosphere above the troposphere, extending to about 32 miles (50 km) above the earth’s surface (the lower boundary of the mesosphere).

Question 7

troposphere

Answer 7

the lowest region of the atmosphere, extending from the earth’s surface to a height of about 3.7–6.2 miles (6–10 km), which is the lower boundary of the stratosphere.