Photosynthesis - Need oxygen? Get a plant
Need oxygen? Get a plant
The carbon dioxide given off by animals is consumed by plants. Plants on land and in the sea replace the oxygen taken in by animals. That is why there is so much concern for preserving forests, green spaces, and oceans. Besides being animal habitats, they are oxygen producers. Without plants, we would all die.
Interestingly, most of Earth's photosynthesis does not take place on land. Over 75 percent of photosynthesis processes on Earth actually takes place in our oceans. Chlorophyll is the vital link in photosynthesis in marine plants as well. But these underwater organisms have larger concentrations of other pigments than their plant "cousins" on land. Because little light penetrates below a depth of 330 feet (100 meters), photosynthesis takes place in the upper part of the ocean called the euphotic zoneThe upper part of the ocean where sunlight...
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