Why Is Mars' Greenhouse Effect Negligible Compared to That of Earth

question 13

Multiple Choice

Why is Mars' greenhouse effect negligible compared to that of Earth?

• A)Its mass is only one-ninth of Earth's.
• B)Greenhouse gas emissions were greatly curtailed according to the International Mars Greenhouse Gas Reduction Treaty of 2003.
• C)The Martian atmosphere is much thinner and retains little heat.
• D)Martian carbon dioxide contains a rare isotope with little ability to trap heat.

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Definitions:

Surplus Amount

The excess of revenues over expenditures in a budget, or inventory beyond what is currently needed.

Consumer Surplus

The gap between what consumers are prepared to spend on a good or service and what they end up paying.

Price

The cost at which goods or services are offered to consumers.

Surplus Amount

The excess of supply over demand in a market, resulting in downward pressure on prices.