A Few of the Largest Asteroids Appear to Be Spherical

question 112

Multiple Choice

A few of the largest asteroids appear to be spherical. How does this occur?

• A) The visible outer atmospheres of these large asteroids are spherical even though the underlying surfaces are irregular.
• B) The largest asteroids solidified from spherical gas clouds in their early history and retained this shape.
• C) Repeated collisions with other asteroids have worn the largest asteroids down to spheres.
• D) Self-gravity was sufficient to pull the largest asteroids into a spherical shape during their early history.

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Definitions:

Communicable

Capable of being transmitted from one person or organism to another, usually referring to diseases.

Inherited

Transferred from parent to offspring through the genetic material.

Macrophages

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.

Enzymes

Proteins that act as biological catalysts, speeding up chemical reactions within living organisms.