It Used to Be Thought That Both of Mars's Moons

question 80

Essay

It used to be thought that both of Mars's moons were captured asteroids. Information fromMars Express and Mars Global Surveyor has led to the conclusion that Phobos may have formedby a different process. Briefly describe that process.

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Definitions:

Calories

Units of energy used to measure the energy food provides to the body, as well as the energy the body uses in physical activities.

Whole Grains

Grains that contain all essential parts and naturally-occurring nutrients of the entire grain seed, including the bran, germ, and endosperm.

Bran

The outer layer of cereal grains removed during the milling process, rich in fiber and nutrients.

Germ

A microorganism, especially one that causes disease; commonly used to refer to pathogens or microbes.