Define the following
Stomatal periodicity

Explanation

**Step-by-Step Text Solution:**

1. **Definition of Stomatal Periodicity**: Stomatal periodicity refers to the rate at which stomata (small openings on the surfaces of leaves) open and close in response to environmental conditions.

2. **Environmental Factors Influencing Stomatal Behavior**: The opening and closing of stomata are influenced by various environmental factors, including:
- Light intensity (solar radiation)
- Availability of water in the soil
- Air temperature
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