The Earth

Why is Earth called “the living planet”?

• It sustains life.

• It has atmosphere

• It has water at the surface

• All of the above

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Which among the set of planets are called terrestrial?

• Jupiter, Neptune, Uranus

• Mercury, Venus, Mars, Earth

• Earth, Venus, Mars, Jupiter

• Jupiter, Saturn, Uranus, Neptune

What makes planet Earth uniquely different from other planets?

• It has soil.

• It has tress.

• It has people.

• It has liquid water.

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What makes planet Earth habitable?

• It has comfortable distance from the sun.

• It has atmosphere that protects from radiation.

• The atmosphere holds carbon dioxide and other gases.

• All of the above

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Why is Earth called a terrestrial planet?

• It has life

• It is farther from the sun

• It is closest to the sun

• It is placed at almost the middle planets

Which of the following best describes the surface of the planet Earth?

• a thick layer of hydrogen gas

• cloudy and hot with lots of volcano

• cold, rocky, and covered with red dust

• mostly water surface with some areas of land

What makes Earth different from other planets in the solar system?

• It supports life.

• It is mostly covered in water.

• Its atmosphere is mostly nitrogen and oxygen.

• All of the above

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Earth is the only planet that can support ___.

• life

• a moon

• a rocky core

• an atmosphere

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How many percent of water comprises the Earth?

• 15%

• 30%

• 50%

• 70%

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What are the factors that make Earth habitable?

• temperature and nutrient

• atmosphere and energy

• only A

• both A and B

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