Answer:
(C) Controls
Explanation:
The definition of a control variable in an experiment is a part of it that is experimented, but it is purposefully kept the same throughout. If it is (C), why can't it be the others? Well, it cannot be (A) because it the dependent variable is the thing that is being measured in the experiment, so it will change over time, and not going to be kept the same. Lastly, it cannot be (B) theories because theories are always changing. Theories, due to new scientific knowledge, is going to be different as scientists learn new things. Therefore, (C), controls would be your answer. Hope this helps!
Martin Luther Kings used allusions to Encourage listeners to envision freedom everywhere.
Answer: Option D
<u>Explanation:</u>
This popular speech by Martin Luther King is known as I Have A Dream. He delivered this speech during 1963 at Lincoln's Memorial. He visioned freedom and jobs for black people.
In this speech, he used allusions and metaphors to explain the status of Blacks in society. They need equality, civil rights and freedom like other citizens in society.
He mentioned that he knows about the violence and the effects of the Civil war.
So he intended to protest peacefully for the same cause. Because black people faced struggles and remained as slaves.
He also mentioned that from this day, we live together as God's children not as Blacks, Jews, whites, etc.
<span>The paragraph describes a simple comparison between a family protest and a community protest.</span>
