Question

a diagram of the water cycle is a
a. visual aid c. discussion
b. pre - question d. all of these
please select the best answer from the choices provided

Explanation:

A diagram is a visual representation. A visual aid helps in understanding a concept. A pre - question is a question asked before a main discussion. A discussion is an exchange of ideas. A water cycle diagram is a visual aid as it visually represents the water cycle process. It is not a pre - question or a discussion.

Answer:

A. Visual aid