A. rate of growth of a seedling over two weeks.
When charged particles from the sun strike atoms in earth's atmosphere, it causes electrons to move to a higher energy state. When the electrons drop back to a low energy state they release light photons. That is what causes an aurora!
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Answer:
Approximately eight minutes.
Answer:
thermometer
Explanation:
the usual means of measuring temperature is a thermometer.
Answer:
Enzymes catalyze specific reactions.
Explanation:
Enzymes are known as both biological catalysts and proteins. It is a substance that acts as a biological catalyst in an organism. The biological processes are chemical reactions, most are regulated by the help of enzymes that occur within all living organisms.
Enzymes are the highly selective catalyst in nature means each enzyme only helps to speed up a specific reaction. Catalysts help to lower the activation energy for reactions. So, if lower the activation energy for a reaction, the faster the rate of reaction.
