Answer:
The natural barrier
Explanation:
If this is not a choice i did it so i could ace my math test to get sdome free answers. Just copying the guy above me.
P<span>eople in Sub-Saharan Africa are LEAST likely to live A) In a desert. I took the test and that was the answer.
Hope this helps,
♥<em>A.W.E.<u>S.W.A.N.</u></em>♥</span>
Answer:
an enormous number of southerners, many of them enslaved, moved west to expand the cotton belt. The 1860 census counted 169,000 enslaved persons, roughly 30% of the state population. After the civil war, whites continued to arrive from nearby southern states, causing the population to double by 1880 and double again in the following twenty years. African Americans contributed little to this late 19th century migration.
Explanation:
Answer:
John is participating in scaling; Jane is participating in a detection experiment question.
Explanation:
The experiment in which John is participating relates to the scaling question and the experiment in which Jane is participating relates to the detection question.
Scaling questions is a method used to construct understandings in order to assess a variable, situation, concern, relationship etc, it involved participant by asking them to perceive, described a variable based on a continuum i.e to rate, grade, usually based a scale of preference. John in the experiment was asked to determine how much brighter light has to be which is based on how he perceives the magnitude of the original light, the researcher is simply asking John to scale the light magnitude.
Detection questions are usually in an interrogative form used to exploring and searching for quality information; a technique that estimates detectability of the observer to accurately detect stimuli or a situation. Jane participating in an experiment was asked to determine how strong an odor has to be before she initially perceives the odor.
