Solar System

What is the primary reason for the different seasons on Earth?

• The Earth's distance from the Sun

• The Earth's elliptical orbit

• The 23.5-degree tilt of the Earth's axis

• The speed of Earth's rotation

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Understanding

During which event is the Earth closest to the Sun?

• June solstice

• December solstice

• Equinox

• Perihelion

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Understanding

The Earth's orbit changes from an ellipse to a more circular shape over a cycle of how many years?

• 10,000 to 20,000 years

• 50,000 to 60,000 years

• 90,000 to 100,000 years

• 150,000 to 200,000 years

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Applying

The equator receives the most direct sunlight all year long, making it the hottest region on Earth. (True/False)

• True

• False

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Understanding

The point in Earth's orbit when it is farthest from the Sun is called _______.

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Applying

The phenomenon where light bends and disperses over a wider area is similar to using a _______ to focus sunlight.

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Creating

The Northern Hemisphere experiences summer during the _______ solstice.

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Applying