Freshwater Ecosystems Quiz

What is a freshwater ecosystem?

• A saltwater ecosystem

• An ecosystem with freshwater.

• An ecosystem in deserts

• An ecosystem with no water

Which is a freshwater ecosystem?

• Lake

• Ocean

• Desert

• Mountain

Which animals live in freshwater?

• Seals

• Whales

• Fish

• Crocodiles

What is the primary energy source in a freshwater ecosystem?

• Sunlight

• Natural gas

• Coal

• Wind

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What follows primary producers in a freshwater food chain?

• Secondary consumers

• Tertiary consumers

• Primary consumers

• Decomposers

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What threatens freshwater ecosystems?

• Urbanization

• Pollution

• Deforestation

• Drought

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What is the role of decomposers in a freshwater ecosystem?

• Regulating water temperature

• Recycling nutrients

• Hunting prey

• Providing food

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Which freshwater ecosystem flows in one direction?

• Oceans

• Ponds

• Rivers

• Lakes

What do freshwater animals need to survive?

• Polluted water

• No sunlight

• Clean water, oxygen, food, habitat

• Saltwater

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NGSS.MS-LS2-1

Why are freshwater ecosystems important?

• They provide habitat, regulate water cycle, and support humans.

• They have no importance

• They support limited species

• They don't impact the water cycle

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