If you're talking about the holocaust, they hid in houses with secret rooms similar to where slaves hid and they fled the places of exile
Answer: Option 'a' is correct.
Explanation:
Researchers can isolate a single factor and examine the effect of that factor alone on a particular behavior through use of a choices is an experiment.
As experiment means when a hypothesis is tested scientifically and check when the cause is changed what would effect that factor alone.
whereas correlational study is the study of two variables understand it and develop the statistical relationship between them without affecting from any variable.
Hence, option 'a' is correct.
Conservation is the care and protection of these resources so that they can persist for future generations. ... Conservation seeks the sustainable use of nature by humans, for activities such as hunting, logging, or mining, while preservation means protecting nature from human use.
Wages and salaries. Listed in descending order of relative size, households divide their total incomes among: consumption expenditures, taxes, and saving.
