Answer:
This sounds like a homophone to me!
I think the answer to your question is c. deforestation causes a decline in atmospheric
oxygen because evapotranspiration means the process by which water is transferred
from the land to the atmosphere by evaporation from the soil and other surfaces by transpiration from plants.
The government of Canada, which is comprised of these provinces that share power with the central government, is referred to as a federal confederation.