I think it is b I hope this help you
The correct answer is experiment
Experiment is <em>"a type of scientific research in which the researcher manipulates and controls one or more independent variables and observes the variation in dependent variables concurrently with the manipulation of independent variables."
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The purpose of manipulating and measuring the variables in the experiment is to capture causality (relationship between cause and effect). Independent variables are responsible for possible causes, and dependent variables signal the effects. Two variables may have a very high correlation, but not necessarily one cause the other. There are three conditions for admitting causality
Answer:
Unlike now, people couldn't just take any environment and turn it into a place for travel if a few days to weeks. Travel through a tough mountain range would be extremely difficult compared to a nice flat lands. Trade was essential for the new england colonies due to the them being away from the mainland. New england had to have good trade with the middle colonies and southern colonies and depended on geography good for travel with goods to and from market places.
Survival of the fittest.social Darwinism that the poor are unfit and weak and the rich superior.<span />
