Biology

The correct answer is D.Respiration.

Explanation:

Respiration is the process by which organisms break down glucose (or other organic molecules) to produce energy. During this process, oxygen (O₂) is used, and carbon dioxide (CO₂) is released as a byproduct.

The general equation for cellular respiration is:

Glucose (C₆H₁₂O₆) + O₂ → CO₂ + H₂O + energy

This energy is used by cells to perform various functions necessary for life.

Why the other options are incorrect:

A.Photosynthesis: This is the process used by plants, algae, and some bacteria to convert light energy into chemical energy, using carbon dioxide (CO₂) and water (H₂O) to produce glucose a...