If the earth were an apple, the biosphere would be no thicker than the apple's skin.

Question

Quizplus · Accepted Answer

The biosphere is the zone of life on Earth, which includes all living organisms and their interactions with each other and with their environment. Despite its importance, the biosphere is relatively thin, with the majority of life concentrated in the oceans and a thin layer of land around the planet's surface. If the Earth were an apple, the biosphere would only be as thick as the apple's skin, highlighting the fragility of life on our planet.

If the Earth Were an Apple, the Biosphere Would Be