In photosynthesis within one plant other plants would be considered the surrounding.
What is photosynthesis?
This is the process by which plants manufacture their food through the process of sunlight.
When one plant is producing its food, that is, photosynthesising, other plants around it are the surrounding.
The surrounding includes everything that can be felt or seen in the physical environment such as other trees, air, leaves etc
Learn more about photosynthesis:
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