Question

what does the word biosphere mean? an observation of the earth from space a map of the earth the part of the earth that supports life

Explanation:

To determine the meaning of "biosphere", we analyze each option:

• "an observation of the earth from space" refers to something like satellite imagery or space - based Earth observation, not the biosphere.
• "a map of the earth" is a representation of the Earth's geography, not related to the biosphere.
• The biosphere is defined as the global sum of all ecosystems, which is the part of the Earth that supports life.

Answer:

the part of the earth that supports life