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The most conspicuous features on he surface of the sun are dark blemishes called

sunspots

THe layer of the sun which radiates most of the light that reaches the earth is called the

photosphere

The sun's energy results from the conversion of hydrogen into

helium

The layer of the sun directly above the photosphere is called the

chromosphere

The sun is considered an "average star"

true

The period of the moon's rotation is equal to its period of revolution

true

The length of daylight on the moon is about

two weeks

The source of the sun's energy is

nuclear fusion

When viewed from earth the dark-appearing ares on the moon are called

maria

Which lunar features is the oldest

lunar highlands

An eclipse of the moon (lunar eclipse) can be seen by anyone on the night side of the earth

true

Most of the moon's craters were produced by

the impact of debris

Streams of atomic nuclei, protons, and electrons and emitted from the sun produces

the solar wind

During periods of high solar activity high cloud like structures that appear as great arches extending from the sun are often produced. These solar features are called

prominences

Radio telescopes are able to detect very short wave radiation emitted by celestial objects

false

To determine whether a celestial body is approaching or receding from the earth astronomers employ

...

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