The amount of rain falling on the cactus plants.
Answer: Option C
<u>Explanation:</u>
Here, the independent variable is the amount of rain that makes the cactus plant grow taller. Control is treated the same as all the rest of the samples, except that it is not exposed to variables that are influenced.
In most experiments, it is important to perform a trial with the independent variable, at a special locale for comparison with the other trials.
The control group consists of all trials where the independent variable is left in its natural state. These trials provide a basis for comparison and ensure that any changes observed in the height of cactus plant are in fact caused by the amount of rain.
Answer:
american imperialism was motivated by four main factors: economic, political, geographic, and cultural. The economic factors were desires to find new markets for trade. By extending colonial power throughout the world, the US would have new trading partners and markets.
Explanation:
Answer: Harlem Renaissance
Explanation:
The development in the 1920s that was inconsistent with much of racial and ethnic intolerance of the decade is the Harlem Renaissance.
The Harlem Renaissance was simply referred to as a a period that involved literary, musical, and culture of the African Americans. It was a revival of their fashion, culture, music etc and it took place in Harlem, New York.
Answer:
It allowed a president to set aside land for conservation.
