What were the four main reasons as to why these ancient people settled near rivers?

Explain why components that are naturally found in air can be considered air pollutants.

Sam hated the long nights of winter! his mother called him in from playing so early: around 4: 30 pm! it is usually dark out when sam is eating supper. what letter represents the long nights where sam lives? a) a. b) b. c) c. d) d.

Which of these fragmental sedimentary rocks would most likely form farthest from the land?