What made the great plains environment challenging for early American Indians? A. Rocky Soil
B. Cold Winters
C. thick forests
D. a long coastline

The actual answer is : B

Humans during the paleolithic era used fire for each of the following purposes except a. for cooking meat b. for use as a weapon c. for heat and warmth d. for treating animal hides select the best answer from the choices provided

Which of the following describes an effect of world war ll on the united states economy

Which of the following questions must be asked about the use of resources in an economic system a. what allocation will provide the fastest growth b. what is the most secure allocation c. what is the fairest allocation d. what is the most effective allocation