I guess it was California
Answer:
(1)Famine : (E) starvation caused by a shortage of food.
(2) indigenous:(D) native.
(3)isthmus:C) thin strip of land connecting two larger land masses.
(4) megalopolis:(B) a very heavily populated urban area.
(5) nomadic:(A) referring to people who move regularly from one place to another.
Answer:
A double-blind study is one in which neither the participants nor the experimenters know who is receiving a particular treatment. This procedure is utilized to prevent bias in research results. Double-blind studies are particularly useful for preventing bias due to demand characteristics or the placebo effect.
For example, let's imagine that researchers are investigating the effects of a new drug. In a double-blind study, the researchers who interact with the participants would not know who was receiving the actual drug and who was receiving a placebo.
Havasu falls and seba oasis. Hope this helps