Psychology is a subject, and psychologists are people who study psychology
Tanks in warfare are used as support for infantry and should be used for aiding the infantry through heavily fortified areas. The armor of the tank is the most important as it allows the crew to break through fortified positions without being harmed.
Raw cotton machine thats the answer i think
Natural rights would be your answer because locke said are "life, liberty, and property." locke believed that the most basic human law of nature is the preservation of mankind