If a student wants to study the effect of sunlight on plant growth. In his experiment, 12 plants receive normal amounts of sunlight, but half of them are kept under bright sun lamps all night long. The control group is: the amount of light the plant receives.
<h3>What is control group?</h3>
A control group is a type of experiment carried out using two variables based on this control group can be defined as the process in which experiment is carried on two different variables such as dependent variables and independent variables in which one of the variables is not experimented or tested.
Based on the given scenario if after 6 weeks, the plants heights measured which inturn means that the control group is the amount of light the plant receives.
Therefore if 12 plants receive normal amounts of sunlight, but half of them are kept under bright sun lamps all night long. The control group is: the amount of light the plant receives.
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Answer:
Some of the drawbacks included air and water pollution and soil contamination that resulted in a significant deterioration of quality of life and life expectancy. Industrialization also exacerbated the separation of labor and capital.
Answer:
President Roosevelt used executive power to order the relocation of many Japanese immigrants.
Explanation:
I would go with answer
B: They both relied on each other for goods and services.
