TN Ready Science Review

What is a population?

• a group of different species living in the same area

• a group of different species living in separated areas

• a group of individuals of the same species living in the same area

• a group of individuals of the same species living in separated areas

Which of the following organisms is most likely to be a pioneer species in an ecosystem?

• a tall tree

• moss

• a shrub

• a mouse

Which type of energy involves harnessing heat produced within Earth to generate electricity?

• solar energy

• nuclear energy

• geothermal energy

• hydroelectric energy

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What is the role of a photovoltaic cell in harnessing energy for people to use?

• It converts solar energy into electricity.

• It heats water that can be used to warm buildings.

• It reflects energy away from Earth and toward space.

• It uses the energy of moving water to rotate a turbine.

Runoff is most like which of the following?

• a puff of steam

• a flowing stream

• a cloud in the sky

• an invisible form of water

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Which of the following has elastic potential energy?

• a vase sitting on a shelf

• a stretched rubber band

• a child moving down a slide

• sugars stored in the molecules of food

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A student is going to compress the object shown in the diagram. Which form of energy will the object gain when it is compressed?

• chemical

• electrical

• potential

• electromagnetic

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How might acid rain harm the environment?

• It traps heat near Earth’s surface.

• It causes coal to burn less efficiently.

• It lowers the pH of bodies of water on the ground.

• It allows harmful radiation from the sun to reach Earth.

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Which of these resources is used to make plastics?

• coal

• uranium

• petroleum

• natural gas

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The graph below shows the population of Los Angeles, California, from 1910 to 2000. What is a plausible explanation for what happened in Los Angeles from 1910 to 2000, according to

the graph?

• conservation

• deforestation

• erosion

• urbanization

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