Question

multiple-choice question you are a scientist and would like to know if a new fertilizer will help plants grow faster. what would the control group be? the group located in the dark. the group that gets water and fertilizer the group that gets only water, no fertilizer the group that gets only soil

Explanation:

In an experiment testing the effect of a new fertilizer on plant growth, the control group should have all conditions the same as the experimental group except for the variable being tested (the fertilizer). So the control group should receive water (a necessary factor for plant growth) but no fertilizer, to compare with the group that gets fertilizer. The other options either introduce an unrelated variable (dark, only soil) or include the fertilizer (so not a control).

Answer:

The group that gets only water, no fertilizer