What Is the Status of the Greenhouse Effect on Mars

question 121

Multiple Choice

What is the status of the greenhouse effect on Mars at the present time?

• A) It no longer exists at all.
• B) It is very weak and raises the planet's temperature only a few degrees above the temperature it would have with no atmosphere at all.
• C) It is weak but becoming stronger as Martian volcanoes continue to dump large amounts of CO₂ into the atmosphere.
• D) It is very strong and has caused the temperature to be at least 100 degrees above the temperature it would have been with no atmosphere at all.

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Definitions:

Cells

The basic structural, functional, and biological units of all living organisms, serving as the building blocks of life.

Semipermeable Membrane

A type of barrier that allows certain molecules or ions to pass through it by diffusion and occasionally specialized "facilitated diffusion."

Water

A transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms.

Millions

A numerical unit representing one thousand thousands, or 1,000,000.