Using appropriate examples, examine four relationship among the sphere of the earth​

Witch one is it soo it the the question b.a,b,c,d

Can someone answer all these questions i need it done by tonight. once again

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