Test your knowledge
There are a lot of ecosystems in the world. How much do you know about the different types of ecosystems?
How much of Earth’s surface is covered by ocean?
Savannas are grasslands punctuated by trees.
Which of these typically features a layer of permafrost?
Temperate freshwater lake
Trees in tropical deciduous forests characteristically lose their leaves in the dry season.
Cloud forests typically grow at sea level in foggy areas.
Where can you find kelp forests?
Coral reefs can expand rapidly.
Mangrove forests are found along the borders of high-elevation deserts.
Keystone species can be plants or animals.
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Ecosystems Quiz
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