The following statement is true: If a pesticide is exposed to sunlight it may have its potency altered or hindered.

The following statement is true: If a pesticide is exposed to sunlight it may have its potency altered or hindered.

• A. False
• B. It has no effect
• C. It decreases potency
• D. True

Answer: (D)

Sunlight can cause photodegradation of pesticides, changing their potency. When a pesticide absorbs light, especially ultraviolet light, it can undergo chemical reactions with oxygen, water, or other substances that break down the active ingredient or convert it into a less active form. This usually reduces effectiveness, though some light-driven changes can alter activity in other ways. That’s why labels recommend storing pesticides away from sunlight and in light-protective containers. So, the statement that exposure to sunlight may alter or hinder potency is true.

Sunlight can cause photodegradation of pesticides, changing their potency. When a pesticide absorbs light, especially ultraviolet light, it can undergo chemical reactions with oxygen, water, or other substances that break down the active ingredient or convert it into a less active form. This usually reduces effectiveness, though some light-driven changes can alter activity in other ways. That’s why labels recommend storing pesticides away from sunlight and in light-protective containers. So, the statement that exposure to sunlight may alter or hinder potency is true.