what is the largest biological system in the world?

what is terrestrial ecosystem?

Dear Student, your friend is right. Oceans are the largest ecosystem on earth. As they cover 70% of the earth, they contribute to the largest ecosystem.

The ecosystem which is present on land constituent the terrestrial ecosystem like grasslands, tundra, desserts, temperate forests etc. 

@ Others : Good work. Keep posting!


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 ocean is the largest biological ecosystem

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 Terrestrial Ecosystems are ecosystems found anywhere on earth that are not covered by water.
There are 4 main terrestrial ecosystems:
Temperate deciduous forest

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