Answer:
letter b is the correct answer
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:
Lincoln probably made so many referances to the American Revolution because of the Civil War at the time considering that the South wanted some sort of independance from the North because they thought they needed slavery and the American Revolution was so that America could become independant and not be ruled by Britain anymore, so that is why he probably referred a lot to the American Revolution.
Answer:
A learning the language of indians.
Answer:
because he jad suger, coffe, cotton and indigo.