Spring (hydrology) and water supply network are subjects the hydrogeologist is concerned about; Water cycle, hydrosphere and water resources are larger concepts which hydrogeology is a part of; References
7.2 Photosynthesis occurs in chloroplasts in plant. cells. ï§ Chloroplasts are concentrated in the cells of the. mesophyll, the green tissue in the interior of the. leaf. ï§ Stomata are tiny pores in the leaf that allow. carbon dioxide to enter and oxygen to exit. ï§ Veins in the leaf deliver water absorbed by roots.
Carbon dioxide is produced as a waste product.   A: The oxygen produced during photosynthesis is used in cellular respiration. The carbon dioxide produced in cellular respiration is used in photosynthesis. carbon dioxide and oxygen move through the ecosystem in this path called the CARBON DIOXIDE-OXYGEN CYCLE.