What region has the cities of houston, san antonio, dallas, austin and corpus christi? *

a. central plains
b. mountains and basins
c. great plains
d. coastal plains

South america is located within which hemisphere?

The poles appear to be slightly flattened in a robinson projection. question 1 options: true false

The first atomic explosion was detonated in the desert north of alamogordo, new mexico, on july 16, 1945. what percentage of the strontium-90 ( yr) originally produced by that explosion still remains as of july 16, 2016?