HELP!! 35 POINTS!!!!!! NEED HELP ASAP!

-Which of the following actions has caused desertification in Africa?
i. Overgrazing of livestock
ii. Farming the same land over and over
iii. Practicing deforestation
A.
i. only
B.
ii. only
C.
i. and ii. only
D.
i., ii., and iii.

-In which of the following ecosystems do many plants survive off the moisture created by coastal fogs?

A.
the Serengeti
B.
the African mangroves
C.
the Sahel
D.
the Namib desert

-Under apartheid, __________.

A.
Muslim law became the law of the entire nation
B.
blacks and whites were granted the same rights, including equal schooling, living conditions, and employment opportunities
C.
blacks and whites were segregated and had separate facilities, different schools and living areas, and unequal access to job opportunities
D.
blacks and whites could attend the same schools but had to live in different areas