Question

Maria is experimenting with bean seeds to see if different fertilizers will make seeds grow taller than seeds grown without fertilizer she plans several seeds in soil with different types of fertilizer which of the following does she need to have a controlled experiment? A. Bean seed that gets no fertilizer B. Seed other than a bean seed C bean seed that gets different amounts of the same fertilizer

Answer 1

She will need A. Bean seed that gets no fertilizer.

I hope this helps! :D