Activation energy is required to start a chemical reaction. Activation energy is the energy needed to allow the reactant to react. Activation energy is measured in Joules (J).
1) a decrease in the amount of groundwater.
Either C or D. I think C, but I'm not too sure...
The answer is TRUE because the process of a fish need to be in freshwater at its first parts of the growing process of a fish.
Matter/atoms.....?
If I remember correctly, then tht would be the answer