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Questions and Answers
Which planet is about half the size of Earth?
Which planet is about half the size of Earth?
- Mercury
- Venus
- Saturn
- Mars (correct)
What is the primary factor that determines the amount of solar radiation a planet receives?
What is the primary factor that determines the amount of solar radiation a planet receives?
- Distance from the Sun (correct)
- Presence of water
- Size and mass
- Atmospheric composition
Which planet has a spheroidal shape?
Which planet has a spheroidal shape?
- Earth (correct)
- Venus
- Mercury
- Mars
What is essential for photosynthesis on a planet?
What is essential for photosynthesis on a planet?
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What is important to sustain life on a planet?
What is important to sustain life on a planet?
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Study Notes
Planetary Characteristics
- Mars is about half the size of Earth.
Planetary Energy Input
- The primary factor that determines the amount of solar radiation a planet receives is its distance from the Sun.
Planetary Shape
- All planets have a spheroidal shape.
Photosynthesis
- Water is essential for photosynthesis on a planet.
Sustaining Life
- Water is important to sustain life on a planet.
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