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From a tall tree to a germ too small to see, Earth is bursting with life. They all live together and depend on one another. This living web has a name. Let us discover the biosphere.
What is the biosphere?
- Earth is full of life — from trees and animals to tiny microbes.
- All living beings, with the places they live, make up the biosphere.
- This includes land, water and air.
- So life interacts with its surroundings to survive and grow.
Example:
A forest with its trees, deer, birds, insects and soil microbes is a slice of the biosphere.
How do living beings depend on each other?
- Plants make food through photosynthesis.
- Animals eat plants or other animals.
- Decomposers break down dead matter and return nutrients to soil.
- So nature works together as a system to support life.
Important Points
- The biosphere is all living beings and where they live.
- Plants, animals and decomposers depend on each other.
- Nature works together as one system to support life.
ā Test Yourself
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What is the biosphere?
View Answer
All living beings together with the places where they live. -
What does the biosphere include?
View Answer
Land, water and air where life exists. -
How do plants make food?
View Answer
By photosynthesis. -
What do decomposers do?
View Answer
Break down dead matter and return nutrients to the soil. -
Do living beings depend on one another?
View Answer
Yes, nature works together as a system to support life.
Important Definitions
- Biosphere — all living beings on Earth together with the places where they live.
