Catalysts lower the activation energy for reactions. The lower the activation energy for a reaction, the faster the rate. Thus enzymes speed up reactions by lowering activation energy. ... The binding of a substrate to an enzyme active site is termed the "enzyme-substrate complex.
1. Coal is in the underground and we have to dig it out. Water is always there and circulating. Wind and Solar are things that have and will exist for a long time. We can use them and cycle them
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I don't know if you have any questions except that I would answer
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the atmosphere is the important part of what makes earth livable and it blocks the sun's dangerous ray from reaching the earth.
<span>These stars tend to be much larger and much hotter than our sun. This is because they have more hydrogen with which to fuse into helium, and this increased level of fuel keeps the overall temperature more elevated than our own star. Over time, the temperature, brightness, and size will decrease as the amount of fuel decreases.</span>
