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

According to the details in this excerpt, the people from Manhattan and Brooklyn will still prefer to cross the river by ferry unless the weather does not allow it. will not be able to communicate with much more speed and efficiency.

Making a country seem too powerful to be attacked is known as?

Which right is protected by the Florida constitution but unprotected by the United State Constitution?

A house divided against itself cannot stand. Which of the following best explains the meaning of Lincoln's statement? Popular vote, not state legislators, should determine a state's senators.

How did the economic growth in the south compare to economic growth in the rest of the country?

What event led the bloodshed in Missouri after a declared itself neutral in the war?

What was blitzkrieg?

The Red Scare was a response to a. Prohibition. b. the Teapot Dome scandal. c. the Russian Revolution. d. the Kellogg-Briand Pact.

16. Who created a vaccine that prevented polio, a widespread and deadly disease? A. Norman Borlaug B. Jonah Yoder C. Jimmy carter D. Jonas Salk

Why did the South rebel against the Union after Abraham Lincoln was elected president? A. Lincoln allowed very few representatives from the South in his Cabinet. B. Lincoln's antislavery views threatened the slavery-based plantations in the South. C.