Interplanetary Material

question 128

Multiple Choice

Interplanetary material

• A) falls on Earth at the rate of several hundred tons per day, mostly as micrometeoroids.
• B) occasionally hits Earth in the form of fairly large objects that form craters, but there is no continuous stream of incoming matter.
• C) hits Earth at specific times of the year in the form of small particles that produce meteor showers, but interplanetary material does not fall on Earth at other times.
• D) falls on Earth only very rarely in the form of single large objects, but these individual impacts can devastate parts of Earth and threaten life.

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