Question

start the extent of the earth's biosphere​

Answer 1

Answer:

Although the biosphere measures about 20 kilometers (12 miles) from top to bottom, almost all life exists between about 500 meters (1,640 feet) below the ocean's surface to about 6 kilometers (3.75 miles) above sea level

Explanation:

Answer 2

Answer:

biosphere means a place where many animals, humans, birds, insects and all living beings and nature's things are there means that is called a biosphere, nature's example of biosphere is earth. artificial human made examples of biosphere is zoo, aquarium.