The Composition of Matter in the Universe Can Be Summarized

question 28

Multiple Choice

The composition of matter in the universe can be summarized by which statement?

• A) All but 2% of the mass of the universe is hydrogen and helium.
• B) All but 2% of the mass of the universe is hydrogen.
• C) Two percent of the mass of the universe is hydrogen and helium. The rest is of heavier elements.
• D) About half of the mass of the universe is in the form of rocks, molecules, and planetary material.

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Definitions:

Confusion

A state of being bewildered or unclear in one's mind about something.

Anger

A strong feeling of displeasure or hostility.

Social Learning

The process of acquiring knowledge or behavior through observing and interacting with others.

Contextual

Relating to or depending on the context of a situation, meaning that it varies according to the circumstances or setting.