Earth Space Chapter 29

Ocean tides are the result of

• the rotation of Earth.

• the sun’s gravitational pull on Earth.

• changes in Earth’s orbital position around the sun.

• differences in both the sun’s and moon’s gravitational pull on Earth.

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The orbit of a planet around the sun is a(an)

• ellipse.

• straight line.

• circle.

• parabola.

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Which of the following groups are all terrestrial planets?

• Venus, Mars, Mercury
• Mars, Venus, Saturn
• Jupiter, Mars, Neptune
• Mercury, Saturn, Jupiter

Which of the following groups of planets are all gas giants?

• Neptune, Saturn, Jupiter
• Venus, Mars, Saturn
• Mars, Venus, Mercury
• Mars, Jupiter, Neptune

Which letter best represents Summer in the Southern Hemisphere?

• A

• B

• C

• D

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How long does it take the Earth to make one REVOLUTION around the Sun?

• 12 hours
• 24 hours
• 365 days
• 29.5 days

The Earth's _______ is an imaginary line that goes from the North Pole to the South Pole.

• vernal equinox
• axis
• solar eclipse
• solar flare

Earth's rotation on its axis is what causes ______________________________.

• seasons
• moon phases
• day and night
• weather

The phases of the moon are caused by

• The Earth's shadow on the moon
• The moon is a white dwarf
• The amount of sunlight being reflected by the moon towards Earth
• The amount of light emitted by the moon towards Earth

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As the moon's shape appears to get smaller, we say that the moon is _.

• Swelling

• Waxing

• Waning

• Shrinking

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