In each example, the biosphere is interacting with another subsystem of Earth. Identify the other subsystem.
1.) Marine life adds
carbon dioxide to
ocean water during
respiration
2.) Plants on land
release oxygen
during photosynthesis.
3.) Bacteria living
underground convert
ammonia to nitrates.
4.) The waste from
livestock adds
nitrogen to the soil.
A) Atmosphere
B) Geosphere
C) Hydroshere