What is the main source of air pollution in the world today?

A. coal-burning factories

B. chemical waste from industrial centers

C. carbon emissions from cars and trucks

D. nuclear power plants

I think it's C. but im not sure

The effect of the immigration acts of the 1920s on the immigration of jews was to

What happens to choppy waves as they move farther from a storm's center?

When did Armenia declared sovereignty?

As Greek culture spread advents advents were made in science and math which of the following were not astronomers

What political ideology triumphed at the conclusion of the Decembrist uprising

What started the Salem Witch Trail? A.) A group of girls accused their servant and other woman of bewitching them. B.) Students accused their teachers of being witches C.) Puritans accused Non-Puritans of witchcraft D.

Which was NOT an initiative of George W. Bush's first 100 days as President? A) supported oil drilling in the Alaskan Artic wildlife refuge B) a missile defense system C) going to war with Iraq D) signed into law "No Child Left Behind Act"

Can the military take over your home during a crisis without permission

How did nationalism and imperialism's go together as powerful ideas in the early 20th century?

Why did the Tang Dynasty face difficulties toward the end of its reign?