Structure and Composition of the Atmosphere

Question 1

Read the question, and then use the drop-down menus to complete the paragraph.

Revolt · Accepted Answer

✔ nitrogen; The most abundant gas in Earth’s atmosphere is , followed by , which is needed to burn wood and fuel. The third-most abundant gas is . The amount of in the atmosphere is very small, making up just 0.0: nitrogen; The most abundant gas in Earth’s atmosphere is , followed by , which is needed to burn wood and fuel. The third-most abundant gas is . The amount of in the atmosphere is very small, making up just 0.0: oxygen; The most abundant gas in Earth’s atmosphere is , followed by , which is needed to burn wood and fuel. The third-most abundant gas is . The amount of in the atmosphere is very small, making up just 0.0: argon; The most abundant gas in Earth’s atmosphere is , followed by , which is needed to burn wood and fuel. The third-most abundant gas is . The amount of in the atmosphere is very small, making up just 0.0: carbon dioxide; The most abundant gas in Earth’s atmosphere is , followed by , which is needed to burn wood and fuel. The third-most abundant gas is . The amount of in the atmosphere is very small, making up just 0.0: small particles

Question 2

argon ✔ oxygen nitrogen

Revolt · Accepted Answer

✔ oxygen

Question 3

✔ argon oxygen nitrogen

Revolt · Accepted Answer

✔ argon

Question 4

argon ✔ carbon dioxide nitrogen

Revolt · Accepted Answer

✔ carbon dioxide

Question 5

✔ small particles ice crystals gas molecules

Revolt · Accepted Answer

✔ small particles

Question 6

Use the drop-down menus to complete each sentence about the layers of the atmosphere.

Revolt · Accepted Answer

If the did not exist, Earth might be destroyed by chunks of rock from space.: mesosphere; The is located 12 to 50 kilometers from Earth’s surface.: stratosphere; Both the get colder as altitude increases.: mesosphere and troposphere; The ozone in the protects people from ultraviolet (UV) radiation.: stratosphere; The has the highest temperature of any layer in Earth’s atmosphere.: thermosphere

Question 7

mesosphere ✔ stratosphere ionosphere

Revolt · Accepted Answer

✔ stratosphere

Question 8

thermosphere and troposphere stratosphere and mesosphere ✔ mesosphere and troposphere

Revolt · Accepted Answer

✔ mesosphere and troposphere

Question 9

thermosphere ✔ stratosphere troposphere

Revolt · Accepted Answer

✔ stratosphere

Question 10

✔ thermosphere stratosphere troposphere

Revolt · Accepted Answer

✔ thermosphere

Structure and Composition of the Atmosphere Answers

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