The Stars in Our Sky Twinkle in Brightness and Color

question 14

Multiple Choice

The stars in our sky twinkle in brightness and color because of

• A)turbulence in the Earth's atmosphere.
• B)rapid changes in the brightnesses and colors of stars caused by changes in their spectra.
• C)light pollution.
• D)the bubbling and boiling of gases on the surfaces of stars.

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Definitions:

Hawk Moth

A group of moths known for their rapid flight and ability to hover in place, often pollinating flowers as they feed on nectar.

Angraecum

A genus of orchids, primarily found in Madagascar, known for their elongated spur and nocturnal fragrance.

Polydactylism

A genetic variation resulting in more than the usual number of fingers or toes on the hands or feet, respectively.

Tay-Sachs Disease

A genetic disorder that destroys nerve cells in the brain and spinal cord progressively due to the absence of a vital enzyme, leading to severe neurological disability and death.