<span>The only man known to have died during the Lewis and Clark Expedition was
</span>Sergeant Charles Floyd. Sergeant Floyd was born in Kentucky and was one of the <span>first men to enlist in the expedition, on August 1, 1803. On August 20, 1804</span>
Answer:
human-environment interaction, movement, and region.
Explanation:
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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: B a hurricane has devastated a small country whose government is actively hostile to most other countries. [A P E X]
Explanation:
