In the Early Solar System, When the Solar System Had

question 23

Multiple Choice

In the early Solar System, when the Solar System had yet to be cleared of the debris out of which it formed, which type of object would have been most likely to deposit water onto Earth's surface?

• A) a comet
• B) an asteroid
• C) a Mars-sized protoplanet
• D) Both comets and asteroids appear to be sources.
• E) None, because water is not a major component of any of the objects above.

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Definitions:

Exercise

Exercise is any bodily activity that enhances or maintains physical fitness and overall health and wellness.

Reduce

To decrease in size, amount, extent, or number.

Ice Water

Water that has been chilled to a temperature at or near its freezing point, often used for drinking or cooling purposes.

Ultrasonic Sounds

Sounds that have frequencies above the upper limit of human hearing, typically greater than 20,000 Hz.