What environmental condition is most likely to trigger the closing of leaf stoma? wind, heat, darkness, or lack of moisture

The correct answer is " lack of moisture".

Explanation:

The opening or closing of the stomata is regulated in the plant by environmental factors such as light and water availability. In cases of lack of humidity, the stomas are closed preventing water losses in the plant. This also prevents the exchange of gases and the entry of atmospheric carbon dioxide necessary for plant nutrition through the process of photosynthesis.

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answers: to make sure that all of the broken pieces of tablet were added to the water, to allow for fair comparison of all three trials, with different particle sizes to avoid experimental error

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .