Today, one of Mexico City’s greatest technological challenges is . A.
arable land
B.
sinking land
C.
extreme drought
D.
population decline

The mantle is made up of which structural zones?

The two types of plains are coastal plains and lowland plains

Venezuela’s economy relies most heavily on which of the followingvenezuela’s economy relies most heavily on which of the following? a. oil reserves in places such as the eastern llanos b. cattle ranching in the grasslands c. fertile farmland in the andean highlands d. coffee plantations in mountainous areas