Final answer:
The four processes in the biosphere where carbon can be found are photosynthesis, respiration, combustion, and decomposition.
Step-by-step explanation:
Carbon can be found in four processes in the biosphere:
a) Photosynthesis: This is the process through which green plants and some other organisms convert sunlight, water, and carbon dioxide into glucose and oxygen.
b) Respiration: This process occurs in all living cells, where glucose and oxygen are converted into carbon dioxide, water, and energy.
c) Combustion: This is the burning of organic matter or fossil fuels, which releases carbon dioxide into the atmosphere.
d) Decomposition: When dead organisms or organic matter decay, carbon is released back into the environment as carbon dioxide or other organic compounds.