Question

layers of the atmosphere
understanding main ideas
the graph below shows altitudes and temperatures for the four main layers of the atmosphere. label the four layers and then complete the statements that follow.

1. the coldest temperatures in the atmosphere occur at an altitude of about
2. the hottest temperatures in the atmosphere occur in the
3. temperatures increase in the and

layers of the atmosphere.

1. as you move up through the mesosphere, the temperature

building vocabulary
if the statement is true, write true. if it is false, change the underlined word or words to make the statement true.

1. the layer of the atmosphere where weather occurs is the thermosphere.
2. the mesosphere is the layer of the atmosphere that contains ozone.
3. the exosphere is the outer layer of the thermosphere.
4. most meteoroids burn up in the stratosphere.
5. the troposphere is divided into two layers.
6. the ionosphere lies between the mesosphere and exosphere.

weather and climate
teaching

Explanation:

Step1: Identify the four main layers of the atmosphere

The four main layers from lowest to highest are troposphere, stratosphere, mesosphere, thermosphere.

Step2: Analyze temperature - altitude relationship

The coldest temperatures occur in the mesosphere around 80 - 90 km altitude. The hottest temperatures occur in the thermosphere. Temperatures increase in the stratosphere (due to ozone absorption of UV radiation) and thermosphere (due to absorption of high - energy solar radiation). Weather occurs in the troposphere. The stratosphere contains ozone. Most meteoroids burn up in the mesosphere. The ionosphere is part of the thermosphere and not between mesosphere and exosphere.

Answer:

1. Troposphere
2. Stratosphere
3. Mesosphere
4. Thermosphere
5. 80 - 90 km
6. Thermosphere
7. Stratosphere; Thermosphere
8. Decreases
9. False, change "thermosphere" to "troposphere"
10. False, change "contains ozone" to "meteoroids burn up"
11. False, change "exosphere is the outer layer of the thermosphere" to "exosphere is the outermost layer of the atmosphere"
12. False, change "stratosphere" to "mesosphere"
13. False, the stratosphere is divided into two layers (lower stratosphere and upper stratosphere in some classifications), not the troposphere
14. False, the ionosphere is part of the thermosphere