Why are refineries needed

Which of the following countries is part of central america

Name the desert regions in arabia and china that are uninhabited

How does the shape and rotation of earth cause uneven heating and what does this have to do with wind?

Which two nations are doing the most to combat their environmental issues?

The term empire is best defined as

Describe how modern science operates and distinguish it from philosophy, pseudoscience, and religion. In recognition of these distinctions, what individual (s) and methods mark the beginning of Astronomy as a science?

What two tectonic plates caused the Himalayan mountains

The longest mountain range in North Africa is what?

Chemical weathering is noted by which of the following

What factor drove Great Britain to divide Ireland into two states in 1921?