Earth's Atmosphere Differs from Those of Near-Neighbor Planets Venus and Mars

question 135

Multiple Choice

Earth's atmosphere differs from those of near-neighbor planets Venus and Mars in one important respect:

• A) Earth's atmosphere has a much larger fraction of carbon dioxide than has either of the other two atmospheres.
• B) The atmospheric temperature at the surface of Earth is much higher than those of the other two planets.
• C) Earth's atmosphere has a significant fraction of oxygen.
• D) Earth's atmosphere has a higher pressure than have the other two planetary atmospheres.

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Definitions:

Nutrition

The process by which living organisms obtain and process the nutrients necessary for health, growth, and maintenance of body functions.

Contaminated Area

A location or surface that has been exposed to potentially infectious agents or hazardous materials, making it unsafe without proper precautions.

Solution

A mixture in which all components are evenly distributed within the liquid, forming a homogeneous mixture.

Gauge

A measurement tool or instrument for determining the magnitude, amount, or contents of something, often used for pressure, thickness, or diameter.