Answer and Explanation:1) photosynthesis can be increased by increasing the concentration of CO2. When a plant is isolated and supplied with carbon dioxide, it is shown to have increased photosynthesis.
2) The Ocean makes up 70% of the planet while the land makes up only 30%. Therefore photosynthesis occurs more in the ocean. The aquatic plants and other autotrophs like the phytoplanktons carries out majority of the photosynthesis on earth.
