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Biology: The Unity and Diversity o...
Biology: The Unity and Diversity o...
Greenhouse gases ______.
- a. slow the escape of heat energy from Earth into space
- b. are produced by natural and human activities
- c. are at higher levels than they were 100 years ago
- d. all of the above
Concept introduction: Greenhouse gas, an atmospheric gas, which has the ability to absorb and reradiate heat energy, helps the Earth to be warm enough to sustain life. The mechanism by which this occurs is referred to as the greenhouse effect.
Reasons for the correct statement:
The greenhouse gases mainly consist of water vapor, carbon dioxide, methane, nitrous oxide, CFC, and ozone. Water vapor comes from nature, and ozone is the gas of nature. Carbon dioxide is mostly abundant in gas, which is induced by humans. CFC gas is mainly induced by humans.
Option b. is given as “are produced by natural and human activities”.
Carbon is released into the atmosphere by burning fossil fuels. Therefore, option b. is correct.
Reasons for the incorrect statements:
Option a. is given as “slow the escape of heat energy from Earth into space”...
Chapter 46 Solutions
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