The term 'sorption' stands for ……… .

Options

A. absorption
B. adsorption
C. Both absorption and adsorption
D. desorption

Explanation

**Step-by-Step Solution:**

1. **Understanding the Term 'Sorption':**
- Sorption is a general term that encompasses two specific processes: adsorption and absorption.

2. **Defining Adsorption:**
- Adsorption refers to the process where molecules adhere to the surface of a solid or liquid. For example, when chalk is placed in water, water molecules gather on the surface of the chalk. This is an example of adsorption.

3. **Defining Absorption:**
- Absorption, on the other hand, involves the uptake of molecules into the bulk of a solid or liquid. For instance, if a sponge (like a form) is placed in water, the water molecules penetrate into the sponge, which is an example of absorption.

4. **Combining the Two Processes:**
- When both adsorption and absorption occur simultaneously, the combined process is referred to as sorption. This means that sorption includes both the adherence of molecules to a surface and their penetration into a material.

5. **Conclusion:**
- Therefore, the term 'sorption' stands for the combined processes of adsorption and absorption.

**Final Answer:**
The term 'sorption' stands for the combined processes of adsorption and absorption.

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