Alahar is a type of mudflow that occurs a. after a volcanic eruption. b. during a tornado. c. after a severe thunderstorm. d. before a hurricane makes landfall.

What is the primary justification of the hypothesis that the early earth environment was void of oxygen? ( 2 points) data showing the concentrations of gases extracted from rocks fossil evidence regarding the origin of eukaryotes generally accepted atmospheric conditions molecular evidence based on evolutionary traits.

17. the soil erosion pictured here is the result of what? a. harvesting renewable resources at a rate greater than the sustainable yield b. a mudslide caused by excessive rains c. harvesting renewable resources at a rate lower than the sustainable yield d. the transition between geologic eras and eons

According to speculation and study, what will happen to the global birth rate in about 40 years? (1 point)