Question

1. some scientific tools are used for making observations, and others are used for making measurements. which of these tools would be most useful for observing the behavior of ants? a. hand lens b. metric ruler c. electronic balance d. graduated cylinder

Explanation:

A hand - lens is used for magnifying small objects to observe them better. Ants are small, and a hand - lens would be ideal for observing their behavior. A metric ruler is for measuring length, an electronic balance for mass, and a graduated cylinder for volume, none of which are relevant for observing ant behavior.

Answer:

a. hand lens