Andrew wants to determine if playing classical music will affect the growth of his rose bushes. Determine the control group for this experiment.

Not playing any music to a group of bushes.

Explanation:

The third response accurately describes a control group, which is a group of participants or subjects which are purposefully not experimented on in order to ensure that other unplanned for variables didnt cause the changes seen in the non-control group

good thing- during decomposition the organic molecules in organic matter are broken down into simpler organic molecules that require further decomposition or into mineralised nutrients

bad thing- it can be harmful in crop productivity

with pass cost = $25

without pass cost = 3x number of days going the the class