Diffusion is a _________ process and is not dependent on _________

Options

A. Slow , gradient of concentration
B. Slow , living system
C. Rapid , temperature
D. Rapid , pressure

Answer

To answer the question "Diffusion is a _________ process and is not dependent on _________", we can follow these steps:

### Step-by-Step Solution:

1. **Understanding Diffusion**:
- Diffusion is defined as the movement of substances from an area of higher concentration to an area of lower concentration. This process occurs until there is an equal distribution of the substance.

2. **Identifying the Nature of Diffusion**:
- Diffusion is generally considered a **slow process**. This is because it takes time for molecules to spread out evenly in a given space.

3. **Analyzing Dependency Factors**:
- Diffusion is influenced by several factors, including:
- Concentration gradient (the difference in concentration between two areas)
- Temperature (higher temperatures increase the energy and movement of particles)
- Pressure (which can affect the movement of gases)
- Since diffusion occurs in both living and non-living systems, it is **not dependent on living systems**.

4. **Filling in the Blanks**:
- Based on the above analysis, we can fill in the blanks:
- "Diffusion is a **slow** process and is not dependent on **living systems**."

### Final Answer:
Diffusion is a **slow** process and is not dependent on **living systems**.

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