Science Test Three

Question 1

Atmospheric pressure

Answer 1

The pressure exerted by the atmosphere on all objects within it

Question 2

Barometer

Answer 2

An instrument used to measure atmospheric pressure

Question 3

Homosphere

Answer 3

The lower layer of the earth’s atmosphere, which exists from ground level to roughly 80 kilometers (50 miles) above sea level

Question 4

Heterosphere

Answer 4

The upper layer of earth’s atmosphere which exists roughly 80 kilometers (or 50 miles) above sea level

Question 5

Mesosphere

Answer 5

The region of the atmosphere that spans altitudes of roughly 48 kilometers to 80 kilometers above sea level

Question 6

Troposphere

Answer 6

The region of the atmosphere that extends from ground level to roughly 11 kilometers (7 miles) above sea level

Question 7

Stratosphere

Answer 7

The region of the atmosphere that spans altitudes of roughly 11 kilometers to 48 kilometers (30 miles)

Question 8

Define- Atmosphere

Answer 8

The mass of air surrounding a planet