The control group in this experiment is the group of tomatoes that do not receive any fertilizers i.e. fourth tomato plants.
<h3>What is Fertilizer?</h3>
Fertilizer may be defined as any chemical or natural substance which is added to the soil with the intention of enhancing productivity.
All those groups of tomatoes in which fertilizers are added behave as a reference group while those in which fertilizer is not added behave as a control group.
Therefore, it is well described above.
To learn more about Fertilizers, refer to the link:
brainly.com/question/24544067
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True millions of different species live on coral reefs
A watt IS by definition a J/s so and so an 18000 W station will use 18000 J/s so it is C
Background. Plants and animals depend on one another for survival in all of Earth's many habitats. ...
Pollination. Pollination is necessary for plants to create new seeds. ...
Propagation. Another way that animals help plants is by dispersing their seeds to new territory. ...
Fertilization.
Hpe this helps :3
Physical Change, although the answer is widely disputed.