Answer/Explanation:
Petroglyphs were images made by picking or carving at the top surface of a rock. Other rocks and sticks were used as utensils to make this happen. Petroglyphs were most commonly engraved by prehistoric humans.
American Indians are the most impoverished racial group in the country. Not surprisingly, if you compare Indian communities to other impoverished areas in the United States, you’ll see similarities in terms of single motherhood, teen pregnancy, drug use, and violence.
Answer:the answer is C.
Explanation: he wanted to make the comparison between the civil war and American revolution and fighting for equality
Cohort differences can be described as the major explanation offered to account for the differences in the pattern of iq stability or decline over adulthood shown in cross-sectional versus longitudinal studies.
<h3>What is meant by cohort difference?</h3>
Cohort is the term that tells us of the people that are around or about the same age.
This is used to refer to the way that the people of different ages react or do things at a particular point in time.
Read more on cohort differences here:
brainly.com/question/14368283
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