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:

Cognitive Processes

Mental activities involved in acquiring knowledge and understanding, including thinking, knowing, remembering, and problem-solving.

Physiological Processes

The functions and activities of living organisms and their parts, including all physical and chemical processes.

Bystander-Calculus Model

A psychological model explaining factors that influence an individual's decision to help or not help in an emergency situation, considering personal costs and benefits.

Labelling the Arousal

Labelling the arousal refers to the process of identifying and attributing the cause of physiological arousal to specific emotions or reactions.