Answer:
The sun and the water.
Explanation:
In this experiment in which Joey and Elena want to determine which is the best fertilizer to use on pepper plants the independent or controlled variables are<em> the amount of sunlight and the amount of water the plants receive</em>. Identical plants are treated in the same way except for Super Grow fertilizer and Mo' Grow fertilizer. The fertilizers are the independent variable that may or may not show different results on the height of the plants.
Answer: engaged in undesirable treatment short of terminating him
Explanation: A supervisor subjecting his worker to undesirable treatment which can be overt or subtle, such as demotion, reduction in salary, reassignment, negative job actions etc. without outright termination is often humiliating, demoralizing and a basis for protests and revolts. Such an instance or situation is more likely to lead to lawsuits against the organisation known as a retaliation suit in protest against unfair treatment on an employee for engaging in activities that are legally protected (which forms the basis of retaliation lawsuit).
Sharp-fanged cat would be the best answer in my opinion.