Francis thinks that the longer a plant is in light, the more fruit it will produce. He places one group of ten plants under a UV light for six hours and another group of ten plants under the same light for eight hours. He waters the plants with the same amount of water at the same time every day; uses the same types of plants, soil, and containers; and monitors the same temperature

Choose the correct label for each part of the experiment.

The plants that are under a UV light for eight hours

A. Experimental group

The amount of water that is given to all of the plants

D.  controlled Variable

The plants that are under the light for six hours  

B. Control Group

Explanation:

i do not know and i have a 100 in this class

the answer is; comparing the frequency of collisions with and without the device

this makes the anti-collision system an independent variable and the collisions a dependent variable. if there are fewer collisions with an anti-collision system that without, then it can be stated that the system is a success. essentially, collisions under an anti-collision system are compared with the frequency of collisions by cars with the human drivers.