What is the World’s Largest Ecosystem?

By BYJU'S Exam Prep

Updated on: November 9th, 2023

The largest ecosystem on the Earth is the Biosphere. It consists of rivers, lakes, oceans, and other wetlands. It is estimated that there are 332 cubic miles of water on Earth. This includes water in frozen form, oceans, lakes, streams, and groundwater. Saltwater accounts for 97.5% of that volume, while freshwater has only 2.5% and 71% of the earth’s surface, supporting more than 3 billion people.

Largest Ecosystem on the Earth

The ecosystem is the structural and functional component in which all biological groups interact with one another and their physical surroundings. A series of interactions occur between the creatures in their habitat and their environment. The largest ecosystem on Earth is the biosphere. The earth’s ecosystems collectively make up the biosphere.

The aquatic ecosystem, which includes wetlands, lakes, rivers, oceans, and streams, makes up 71% of the earth’s surface.

  • Other ecosystems include the lithosphere, which contains organisms that live in rocky areas, and the grassland ecosystem, which is home to all species of plants belonging to the grass families, as well as small and large animals.
  • The forest ecosystem, the desert ecosystem, the cropland ecosystem, and the freshwater ecosystem.
  • As a whole of all, the biosphere is thought of as the earth’s biggest ecosystem.


The Largest Ecosystem on the Earth is?

The Biosphere is the largest Ecosystem on the Earth. Every ecosystem on earth is included in the biosphere. The biosphere refers to the areas of the earth’s surface, atmosphere, & hydrosphere (or comparable regions on other planets) that are home to living things.

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