Question Detail
Question
The biosphere refers to: a. The zones of life on Earth b. Populations in an area c. All communities in an ecosystem d. Only aquatic ecosystems
Correct Answer
Option A is the correct answer.
Detailed Explanation
The biosphere is the global sum of all ecosystems. It is the zone of life on Earth, encompassing all living organisms and the parts of the Earth (land, water, atmosphere) where life exists.
Hint
It's the sphere of life, covering the whole planet.