<h2>Answer:</h2>
Option A is correct
Adding an enzyme to decrease the activation energy of the reaction
<h2>Explanation:</h2>
Enzymes are the biological catalyst. They are proteins in nature. They are naturally found in humans,animals,micro-organisms,plants etc. They catalyze the chemical reactions by lowering activation energy and without being consumed in it.
Answer:
D
Explanation:
The electrons revolve around the nucleus and they contain negative charge
Answer:
Covalent Bonds are formed when two non-metals share electrons
Hope this helps
