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

question 56

Multiple Choice

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

• 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:

Shipping Container

A large, standard-sized metal box used for transport and storage of goods in international trade.

Activity Variances

The differences between actual and budgeted levels of activity, often analyzed to understand deviations in performance.

Revenue Variances

The differences between actual revenues and forecasted or budgeted revenues.

Relevant Range

The range of activity within which assumptions about variable and fixed cost behavior are valid.