On a pesticide label, how are the active ingredients typically presented?

• A. By name and percentage
• B. By name only
• C. In weight only
• D. In volume only

Answer: (A)

Active ingredients on a pesticide label are presented by name and percentage. This format provides essential information about the effectiveness of the pesticide, ensuring that users are informed about the specific chemicals they are handling and the concentration of each active ingredient in the product. The percentage indicates how much of the product's total weight or volume is made up of the active ingredient, which can be critical for users when determining how much to apply for effective pest control while following safety guidelines.

Presenting the active ingredients only by name or by weight or volume would not provide the necessary information to users for understanding the potency and application rates of the pesticide. Hence, the combination of name and percentage is standard for clarity and safety in pesticide usage.