If a strong odour is smelled continuously for some time, the sensation of that weakens. Justify.

Explanation

**Step-by-Step Solution:**

1. **Understanding Olfactory Cells**: The first step is to recognize that olfactory cells are specialized nerve cells responsible for detecting odors. They are located in the nasal cavity and play a crucial role in our sense of smell.

2. **Continuous Stimulation**: When a strong odor is present, these olfactory cells are continuously stimulated. This means that the cells are constantly receiving signals from the odor molecules in the air.

3. **Fatigue of Olfactory Cells**: Just like muscles can become fatigued after prolonged use, olfactory cells can also experience fatigue. Continuous stimulation leads to a decrease in their responsiveness over time.

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