The Sun's Photosphere Is, by Mass, About 25

question 87

Multiple Choice

The Sun's photosphere is, by mass, about 25%

• A) helium.
• B) carbon.
• C) hydrogen.
• D) oxygen.

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Definitions:

Natural Selection

The process by which organisms better adapted to their environment tend to survive and produce more offspring, a key mechanism of evolution.

Mutation

A permanent alteration in the DNA sequence that makes up a gene, varying from a single base pair to large sections of a chromosome.

Scale of Nature

A historical concept proposing a hierarchical order of living organisms from simplest to most complex, often associated with pre-Darwinian theories of evolution.

Aristotle

An ancient Greek philosopher and polymath, whose extensive writings cover diverse subjects including physics, biology, metaphysics, logic, ethics, and politics, significantly influencing Western intellectual history.