An aquifer receives 20 m3 of precipitation and loses 2 m3 of water through natural movement. If the water budget must be balanced, how much water can be pumped from the aquifer? 22 m3
36 m3
18 m3
20 m3

Eastern europe and parts of northern europe have which of the following climates?

What's erosion? a. the breakdown of rock into smaller pieces b. the removal of weathered products from rock c. a change in rock resulting from exposure to water d. a chemical change in rock that weakens it

Islam and the arabic language spread throughout north africa in the 600s primarily through a. african traders b. american colonists c. european explorers d. middle eastern armies select the best answer from the choices provided