In What Crucial Way Is the Atmosphere of Earth Very

question 138

Multiple Choice

In what crucial way is the atmosphere of Earth very different from the atmospheres of Venus and Mars?

• A) Earth's atmospheric temperature is relatively cool, whereas both Venus and Mars have very high atmospheric temperatures.
• B) Methane (CH₄) gas is present in large quantities on Venus and Mars, but it is only a trace gas on Earth.
• C) Hydrogen (H) gas makes up a large fraction of the atmospheres of both Venus and Mars, but it is absent from Earth's atmosphere.
• D) Carbon dioxide (CO₂) gas is the dominant component in the atmospheres of Venus and Mars, but it is only a minor constituent in Earth's atmosphere.

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Definitions:

ADHD

Attention Deficit Hyperactivity Disorder, a neurodevelopmental disorder characterized by problems with focus, hyperactivity, and impulsiveness.

Diagnostic Label

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Stigmatizing

The action of marking or branding someone or something as disgraceful or unworthy, often leading to discrimination.

Self-fulfilling

A prediction or expectation that causes itself to become true simply because the prediction or expectation was made.