15. refers to the idea that solid portions of Earth's crust float on a fluid layer.

A. Theory of isostasy

B. Fault block formation

C. Subduction

D. Orogenic processes

Plz which natural resources in southwest asia are important? choose all answers that are correct. oil plutonium water natural gas

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

Write a 150word essay describing the effect of people's activities on the environment in the region.