A new mineral in the mine is very exciting news. On Dr. Rock's next survey report, he gets to update the number of known minerals to come out of the mine from 15 to 16! This is just one more reason that Dr. Rock's mine is a unique place on Earth. How can the idea that different minerals are formed in different environments provide evidence for energy and matter cycling?

Which of the following statements best describes what is occurring in the land surrounding the sahara desert? a desertification is increasing, and the desert is expanding. b. fewer people are trying to farm in this semiarid region. c. the desert is shrinking with the increased use of irrigation. d. increased urbanization has resulted in decreased deforestation. select the best answer from the choices provided mark this and return save and exit next submit