its says students learned that the global human population doubled between 1950 and 1987 they wonder how this change affect the ability of resources ​

photosynthesis makes the glucose that is used in cellular respiration to make atp. the glucose is then turned back into carbon dioxide, which is used in photosynthesis. while water is broken down to form oxygen during photosynthesis, in cellular respiration oxygen is combined with hydrogen to form water.

they are known as evergreens