Ancient Astronomers Observed That the Positions of _______ in the Sky

question 21

Multiple Choice

Ancient astronomers observed that the positions of _______ in the sky remain fixed relative to each other,while the locations of ________ move over time.

• A) the Sun and Moon; the stars
• B) the stars; the planets
• C) the planets; the Sun and Moon
• D) the Sun and Moon; the planets

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Definitions:

Myelination

The biological process of forming a myelin sheath around the axons of neurons, which significantly increases the speed at which electrical impulses travel across the nerve cells.

Abstract Thinking

The ability to think about objects, principles, and ideas that are not physically present.

Glaucoma

A group of eye conditions that can cause damage to the optic nerve, potentially leading to loss of vision if not treated.

Eye Disease

Any condition that affects the eye's structure, function, or health.