Question

Fill in the blanks in the statements below about the role of living organisms in the carbon cycle.(2 points)
Photosynthesis contributes to the carbon cycle by
releasing
carbon dioxide and thus
increasing
the amount of carbon dioxide in the atmosphere. Photosynthetic algae is one reason the ocean is a massive carbon
source
on our planet.

Answer 1

Corrected fills:
Photosynthesis contributes to the carbon cycle by absorbing (or removing) carbon dioxide and thus decreasing the amount of carbon dioxide in the atmosphere. Photosynthetic algae is one reason the ocean is a massive carbon sink on our planet.

Brief note: photosynthesis fixes CO2 into organic matter (by plants and phytoplankton); some of that carbon is stored in ocean waters and sediments, making the ocean a major carbon sink.