Answer:
c
Explanation:
because humans don't have the ability and power to create natural resources
The 13th amendment banded slavery.
Answer:
The Columbia Exchange is also known as the Great Exchange occurred in the middle of 1940's.
Explanation:
The Great Exchange is an exchange of cultures and livelihood of between Eastern and Western Hemisphere, in the areas of politics, economics, and social back ground.
The great exchange was caused by a strong desire for continents such as Europe, America, Africa and Asia, to participate in joint trading activities, which affected every strata (politics, economics , religion ) of the people and culture.
Crops such as Beans, were exported from America to Europe, Africa and Asia, and eventually grown in the continents they were imported to. As a result, they were issues of epidemics following the trade exchange, but such epidemics were managed eventually.
Answer:
c) the emotional or neutral word list
Explanation:
In research, we usually have two different types of variables:
- The independent variable is the one that the researchers can control and that will have an effect on another variable.
- The dependent variable is the one that cannot be control and that is affected by the independent variable. Researchers observe this variable to see how it changes. This is the variable that will be tested or measured.
In other words, the independent variable has an effect on another one and it can actually be controlled by researchers.
In this example, Dr. Kang wants to examine the effects of emotion on memory. In other words, how emotions affect memory. He proceeds to hand a list of words with very emotional content to a group of subjects and a list of neutral words to another group and then measures how many words each group is able to remember. We can see that he thinks emotional words will have an EFFECT on emotion. Also, he can control this variable by handing different lists (emotional or neutral words) to each group. Therefore, this is the independent variable. ( c. the emotional or neutral word list)
