QuestionJuly 12, 2025

Which layer of the atmosphere is the closest to Earth, is the densest layer, and contains 99% of the atmosphere's water vapor and aerosols? stratosphere mesosphere thermosphere troposphere

Which layer of the atmosphere is the closest to Earth, is the densest layer, and contains 99% of the atmosphere's water vapor and aerosols? stratosphere mesosphere thermosphere troposphere
Which layer of the atmosphere is the closest to Earth, is the densest layer, and
contains 99%  of the atmosphere's water vapor and aerosols?
stratosphere
mesosphere
thermosphere
troposphere

Solution
4.1(351 votes)

Answer

Troposphere Explanation 1. Identify the layer closest to Earth The troposphere is the layer of the atmosphere closest to Earth's surface. 2. Determine the densest layer The troposphere is the densest layer due to gravity pulling air molecules closer to Earth. 3. Check for water vapor and aerosols The troposphere contains 99\% of the atmosphere's water vapor and aerosols.

Explanation

1. Identify the layer closest to Earth<br /> The troposphere is the layer of the atmosphere closest to Earth's surface.<br />2. Determine the densest layer<br /> The troposphere is the densest layer due to gravity pulling air molecules closer to Earth.<br />3. Check for water vapor and aerosols<br /> The troposphere contains $99\%$ of the atmosphere's water vapor and aerosols.
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