What does the word biosphere mean?
AWhere rocks form under Earth
BWhere air moves around Earth
CWhere water flows over Earth
DWhere life exists on Earth
Answer & Solution
Correct answer: D. Where life exists on Earth
1. The prefix bio points to something to do with life.
2. A sphere is a round shape, and here it stands for the whole planet.
3. Put together, the biosphere is the place where life exists on Earth.
4. It takes in the soil and rocks, the water and the air.
_Source: Siyavula Natural Sciences Grade 7 (CC BY 4.0), What is the biosphere?_