AP human geography Which of the following process is the best explained by the concept of an agricultural hearth

Compare and contrast the environmental consequences of reliance on coal with reliance on petroleum.

Why are radio observatories located in valleys far away from urban centers? a. to shield them from electromagnetic interference b. to avoid sound pollution c. to avoid disturbing people living in the city d. to shield them from water vapor

Which are the apprehensions of the consumers who shop online? consumers who shop online enjoy the convenience of shopping from home but are apprehensive about theft and loss of privacy.