On a plant, stomates are small openings that regulate the passage of air and water vapor to and from the plant. Generally, the stomates open during sunlight and exchange gases with the atmosphere. The stomates of a few specialized desert plants can open only at night. The best explanation for the pattern of stomate opening and closing is that the desert plants are adapted to protect against (1) harmful insects
(2) dust particles
(3) destructive plant disease
(4) excess water loss
(5) total energy loss

Please help me somebody answer this.
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