Answer:
The best answer is mountains and valleys
Explanation:
first option doesn't seem correct because it doesn't have one giant plateau. Instead it is multiple. so that option is incorrect.
second option is incorrect because there really is no evidence about plains and hills.
third option is incorrect for the same reason as second option.
The Fourth option is correct because Sub-saharan contains mountain ranges and multiple rift valleys.
(have a nice day and soon merry christmas or happy Hanukkah)
Erosion of farmland, overuse of both surface and groundwater, dwindling supplies of finite fossil fuels, and escalating extinction of plant and animal species imperil the ability of the earth's resources to meet the needs of such enormous numbers of humans. The food situation worldwide is becoming critical
Answer:
That's more than 275 million stars per day in the observable universe. Stars keep themselves fueled. They fuse elements together to make new elements. ... Once the star runs out of hydrogen, the helium atoms fuse together to make carbon.
Answer:.......... The densest surface water masses in the oceans are the North Atlantic Deepwater and Antarctic Deepwater.
