What effort do enzymes have on the activation energy of exergonic and endergonic reactions

activation energy of exergonic reactions:

a. increase
b. decrease
c. increase
d. decrease

activation energy of endergonic reactions:

a. increase
b. decrease
c. decrease
d. increase

Enzymes 'reduces the activation energy' of both Exergonic and Endergonic Reaction by acting as a catalyst.

Explanation:

For example, in the case of 'carbonic anhydrase', enzymes act rapidly causing the chemicals to 'react 107 times faster' than they would normally. Enzymes are substrate specific meaning an enzyme working on one substance may not work on another. Function of the enzyme is identified by its 'shape of the protein' and arrangement of these molecules produces an area called activation site.

In horizontal rock layers each layer is younger than the one below it