Consider the following observation:

Joe noticed that when the farm uphill from his house began using chemical-based fertilizer, the number of frogs in his pond in the spring time decreased. Joe believes the new fertilizer is unhealthy for amphibians in nearby water systems.

Design an experiment to test Joe's theory. You should include the following details in your experimental design: a hypothesis statement, a dependent variable, an independent variable, a brief procedure of what your experiment will look like and some anticipated results. All in all, expect to write about 7-10 sentences for this quiz.

How do I set up the answer for this question??