Question

What is biosphere? what are the ways to overcome it.
Please let me know.

Answer 1

The biosphere is the layer of the planet Earth where life exists. This layer ranges from heights of up to ten kilometres above sea level, used by some birds in flight, to depths of the ocean such as the Puerto Rico trench, at more than 8 kilometres deep. These are the extremes; however, in general the layer of the Earth containing life is thin: the upper atmosphere has little oxygen and very low temperatures, while ocean depths greater than 1000 m are dark and cold. In fact, it has been said that the biosphere is like the peel in relation to the size of an apple. 

Answer 2

The layer of Earth were life in our planet exists .
 
It comprises of living and non living along with man made and artificials .

till ranges till 10 km from Earth's crust from sea level .




hope it helps:best of luck