Unit 2 : The Chemistry of the Atmosphere

Question 1

starts at the Earth’s surface and extends 8 to 14.5 kilometers high (5 to 9 miles). This part of the atmosphere is the most dense. Almost all weather is in this region.

Answer 1

Troposphere

Question 2

starts just above the troposphere and extends to 50 kilometers (31 miles) high. The ozone layer, which absorbs and scatters the solar ultraviolet radiation, is in this layer.

Answer 2

Stratosphere

Question 3

starts just above the stratosphere and extends to 85 kilometers (53 miles) high. Meteors burn up in this layer

Answer 3

Mesosphere

Question 4

starts just above the mesosphere and extends to 600 kilometers (372 miles) high. Aurora and satellites occur in this layer.

Answer 4

Thermosphere

Question 5

an abundant layer of electrons and ionized atoms and molecules that stretches from about 48 kilometers (30 miles) above the surface to the edge of space at about 965 km (600 mi), overlapping into the mesosphere and thermosphere.

Answer 5

Ionosphere

Question 6

This is the upper limit of our atmosphere. It extends from the top of the thermosphere up to 10,000 km (6,200 mi).

Answer 6

Exosphere

Question 7

one layer of the stratosphere, the second layer of the Earth’s atmosphere.

Answer 7

Ozone Layer

Question 8

a natural process that warms the Earth’s surface.

Answer 8

Greenhouse effect