All of the above.
In what year did the Rio+20 Conference take place?​

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

The volume of the triangular prom is 54 cubic units

What is the border between layers a through f and layer g called?