State for each of the following whether it is due to evaporation or condensation
Blackboard dries up after wiping it.

Explanation

To determine whether the drying of a blackboard after wiping it is due to evaporation or condensation, we can follow these steps:

### Step 1: Understand the Concepts
- **Evaporation** is the process where a liquid changes into a gas.
- **Condensation** is the process where a gas changes into a liquid.

### Step 2: Analyze the Situation
- When you wipe a blackboard with a wet cloth, the cloth leaves some moisture (liquid) on the blackboard.
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