Environmental Science for AP* (2nd Edition)

Published by W. H. Freeman
ISBN 10: 1464108684
ISBN 13: 978-1-46410-868-6

Cumulative - AP Environmental Science Practice Exam - Section 1: Multiple-Choice Questions - Page EXAM-11: 92

Answer

(e)

Work Step by Step

Greenhouse gases are gases in the Earth's atmosphere that trap heat, leading to the greenhouse effect. Some of these gases, such as carbon dioxide (CO2) and methane (CH4), have a warming effect on the Earth's surface. The majority of greenhouse gases that contribute to warming are located in the troposphere, the layer of the atmosphere closest to the Earth's surface, where weather occurs. The stratosphere, which is located above the troposphere, contains the ozone layer but does not significantly contribute to the greenhouse effect. The answer is (e).
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