Answer:
the reaction was exothermic because the heat dissipated quickly after a mere few minutes.
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More consumers than producers
The stomata of leaves are surrounded by guard cells. The guard cells help the leaves to regulate the rate of transpiration of water from the leaves by opening and closing the stomata. When water enter the guard cells, they swell and bulge and this makes the stomata to open. So, with high water pressure, the guard cells will stimulate the stomata to open. The reverse will be the case if the water pressure is low.
OK like most things chlorophyll is found in the chloroplasts of green algae
