How does an enzyme influence a chemical reaction A. It provides the substrate needed for the reaction to occur
B. It raises the activation energy so that a reaction can occur
C. It speeds up the reaction rate
D. It is used as a reactant to form the product

It speeds up the reaction rate

Explanation:

Enzymes are biological catalysts. 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.

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explanation:

the cost of mining is extremely low compared to the money earned from mining, creating income to improve the environment.