Earth and Life Science

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

Earth is said to be a unique planet. Which answer verifies the statement?

• It supports life.

• It is mostly covered in water.

• Its atmosphere is mostly nitrogen and oxygen.

• All of the above

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Which is supported and sustained by planet?

• 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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Which factors are needed for organisms to live on Earth?

• temperature and nutrient

• atmosphere and energy

• only A

• both A and B

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6. What characteristics does the Earth have to maintain an organism’s body to

survive?

• Earth has a water cycle and atmosphere

• Earth has volcanic activities to circulate nutrients

• Earth has sub-surface water or molten rock that can circulate and replenish nutrients for organisms.

• All of the above

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What makes Earth similar to Venus?

• Earth and Venus are the right sizes to hold a sufficient atmosphere.

• Venus’ atmosphere is 100 times thicker than Earth.

• Among all the solid planets and moons, only Earth, Venus, and Titan

  have significant atmospheres.

• Both A and C

Which distinct characteristic made Earth different from any other planet?

• It is the only rocky planet

• It is the only planet that turns around in space.

• It is the only planet that has a large amount of liquid water.

• It is the only planet that changes its structure

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Which statement about the Earth will help organisms to survive?

• Earth has no protective equipment like ozone.

• Earth has layer water only for favorable climate.

• Earth has man-made natural cycles

• Earth’s temperature is neither the hottest nor the coldest among other

  planets.

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What does Earth offers to human in order to sustain life?    

• A. Earth has abundant plant life.

• Earth has sufficient nutrients from ocean to land.

• Only A

• . Both A and B.

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