Answer:
C.“But, I confess, I should like to hear their song.”
Explanation:
I got it right on edge lol
Most of what we know about the interior of the Earth comes from the study of seismic waves from earthquakes. Seismic waves from large earthquakes pass throughout the Earth. These waves contain vital information about the internal structure of the Earth.
The earth consist of lands, water, air, hydrosphere , and all the organisms that live on top of it
And Biosphere cover all of these things
Which means that the portion of earth that is included in the biosphere is 100 % of it
hope this helps
