Question

2.1.6 quiz: energy and matter in the biosphere
question 4 of 10
which processes provide most of the energy for all other life processes?
a. the water, nitrogen, and carbon cycles
b. digestion and decomposition
c. chemosynthesis and cellular respiration
d. cellular respiration and photosynthesis

Explanation:

Photosynthesis converts light - energy into chemical - energy stored in glucose. Cellular respiration breaks down glucose to release energy in the form of ATP. These two processes are fundamental for energy supply in life processes. The water, nitrogen, and carbon cycles are mainly about matter cycling, not energy supply. Digestion and decomposition are related to breaking down substances but not the main energy - providing processes. Chemosynthesis is important in some specialized environments but not as widespread as cellular respiration and photosynthesis for overall life processes.

Answer:

D. Cellular respiration and photosynthesis