Darnell wants to gain insights into extramarital sexual activity among people who were born between 1945 and 1960. to conduct his research, he asks older people at three suburban shopping malls outside chicago to complete a survey.
will darnell's approach provide useful data to achieve his research goal?

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

According to the law of supply,suppliers want to sell their product at prices

This cartoon appeared in 1916. the topic of the cartoon isa)the reason for the start of world war i.b)the success of us submarines in world war i.c)the military alliance between germany and mexico.d)the attitude in the us towards submarine warfare in world