How do substances like carbon dioxide `(CO_(2))` and water `(H_(2)O)` move in and out of the cell?

Explanation

To answer the question of how substances like carbon dioxide (CO₂) and water (H₂O) move in and out of the cell, we can break down the process into several steps:

### Step-by-Step Solution:

1. **Understanding Movement of Substances**: The movement of substances in and out of cells occurs through two main processes: diffusion and osmosis.

2. **Diffusion**:
- Diffusion is the process by which substances move from an area of higher concentration to an area of lower concentration.
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