6. Facts About Planet Earth

What is the temperature of the solid inner core of the Earth?

• 5200 degrees Celsius

• 4900 degrees Celsius

• 5500 degrees Celsius

• 520 degrees Celsius

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What is the distance between the Earth and the Sun?

• 93 million miles

• 100 million miles

• 50 million miles

• 200 million miles

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What are the three states of water on Earth?

• Solid, liquid, gas

• Solid, liquid, plasma

• Solid, gas, plasma

• Liquid, gas, plasma

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What does the Earth's atmosphere do?

• Protects from harmful radiations

• Regulates the climate

• Deals with approaching asteroids

• All of the above

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What is the meaning of the word 'Earth'?

• The ground

• The sky

• The ocean

• The universe

How long did it take for Earth to become the world we know today?

• 4.5 billion years

• 1 million years

• 10,000 years

• 100 years

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What is the role of Earth's rotation and revolution?

• Create day and night cycle

• Create season cycle

• Create flat poles and bulge around the Equator

• All of the above

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What should we do to protect our Earth?

• Keep it clean

• Find alternative sources of energy

• Plant more trees

• All of the above

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