Answer)
Global warming may cause photosynthesis to occur earlier. As coinatet warms, springs come earlier and ends later. This change bn in temperatures affect the plant growth. If a plant doesnot have the correct amount of water for photosynthesis, then the plant's level of oxygen output also decreases.
The rise in Earth's temperature limits the amount of rainfall which leads to droughtdrought. Not only this but the polar caps will also melt leading to rise water levels and if the soil obtains more water than required, it starts spoiling the crops which will surely affect photosynthesis.
The amount of carbondioxide, when nit changed by plants into oxygen, begin to increase in the atmosphere. This actually prevents heat from the sun bouncing off the surface of the earth and escaping back into space. This results in extreme heat trapped in the earth's surface increasing the temperature drastically, leading to its affect on photosynthesis.
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