Which of the following are warning signs that a volcano will soon erupt? earthquakes or tremors ground swelling color changes smoke plumes?

Ahill is made of rock particles of different sizes. which of these agents of erosion probably caused the hill to form?

Name one type of data that h-r diagrams do not show.

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