In humid climates, limestone regions tend to be
O A. valleys
O B. ridges
O C. plateaus
O D. volcanoes

Which evidence is most likely used to indicate the beginning of solar system formation? a. materials combined to form a mass. b. materials were pulled together by gravity. c. water condensed and collected to form oceans. d. different species of microorganisms lived on earth.

What border separates sonora and chihuahua national border state border physical boundary natural boundary

Which of these is the sound of fish slapping against human flesh?