Unit 3: Inner Planets Review

Which planet depends on solar radiation to survive?

• MARS

• VENUS

• EARTH

• MERCURY

What is the main reason for the seasons on Earth?

• The speed of Earth's rotation

• The tilt of Earth's axis

• The distance to the Sun

• The shape of Earth's orbit

Which planet is known as the 'Red Planet'?

• Venus

• Mars

• Jupiter

• Saturn

Which of the inner planets is the smallest?

• Mercury

• Venus

• Earth

• Mars

Which object would have the lowest gravity?

• Mercury

• Mars

• Venus

• The Moon

Which of the following has the least gravitational effect on the tides?

• Earth

• Moon

• Sun

What is the distance from Venus to the Sun in millions of kilometers?

• 108 million km

• 150 million km

• 57 million km

• 228 million km

When does the Earth become uninhabitable according to the age of the sun?

• 5 billion years

• 10 billion years

• 7 billion years

• 3 billion years

A neap tide occurs during which two lunar phases?

• Full Moon and New Moon

• Waxing and Waning

• Waxing Gibbous and Waning Gibbous

• 1st Quarter and 3rd Quarter

The time it takes for a planet to make one complete orbit around the Sun is a ____.

• day

• month

• year

• decade