What is the meaning of anaerobic?

Anaerobic exercise is a type of exercise that breaks down glucose in the body without using oxygen, as anaerobic means “without oxygen”. In practical terms, this means that anaerobic exercise is harder but shorter than aerobic exercise

Explanation:

because that is what it is

Anaerobic Respiration  is when glucose breaks down with out oxygen. Chemical reaction transfers glucose to the cell. Anaerobic reaction produces lactic acid rather than carbon dioxide and water.

Explanation:

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.