Science Unit 4

What type of pollution does this image show?

• Air pollution

• Water pollution

• Land pollution

A power plant leaks poisonous chemicals into the water in a habitat. What is the most likely effect on the habitat's animal population?

• The population will become larger because the water will be colder.

• The population will become larger because of the new minerals in the water.

• The population will become smaller because there will be less clean drinking water.

• The population will become smaller because there will be more plants living in the water.

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James turns off the water while brushing his teeth. Which action is he taking to help plants and animals?

• polluting

• recycling

• reducing

• reusing

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Which is the best example of saving water to protect the environment?

• only water the lawn after it rains

• do laundry more often with cold water

• turn off the water while brushing teeth

• leave the shower running for the next person

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The picture shows sea oat plants on the coast of Tybee Island, Georgia. How do sea oats BEST help to conserve natural resources?

• The sea oat plants help to keep the sand on the beach.

• The sea oat plants help to keep animals out of the ocean.

• The sea oat plants help to keep ocean water from reaching the land.

• The sea oat plants help to keep animals from laying eggs on the shore.

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The picture shows cans, garbage, and plastic bottles in the ocean. Which question can be answered using the picture?

• What animals eat garbage?

• What temperature is the water?

• How many fish live in the ocean?

• How do humans cause water pollution?

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A power plant is built near a water source in a habitat. A scientist wonders if the power plant is leaking bad chemicals into the habitat. Which question would BEST help the scientist to know?

• Has there been more rainfall in the habitat?

• Has the weather been warmer in the habitat?

• Are there fewer plants and animals in the habitat?

• Are the animals eating different plants in the habitat?

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Which is NOT a way that conserving resources helps all species?

• less habitats are destroyed

• more resources are available

• more pollution in the environment

• less litter in animal habitats

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Which of the following would most likely cause a loss of clean drinking water?

• a potato chip bag that is thrown from a car onto the road

• a power plant with chemicals that seep into the ground

• a plastic soda bottle that is thrown into the ocean

• a cloth diaper that is dumped into a pile in a landfill

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Braxton drinks a bottle of water every day and recycles the bottle. Morgan tells him it would be better for the environment to use a reusable water bottle. Is Morgan right? Why or why not?

• Yes, because a reusable water bottle would fit more water.

• No, because the recycled water bottle would fit more water.

• Yes, because a reusable water bottle would conserve more resources.

• No, because the recycled water bottle would conserve more resources.

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