Eastern european countries made up over half of the list of the top twelve countries who produce the largest amount of electricity generated by nuclear power plants.

a) true
b) false

Which of the following regions has what is considered the most rugged terrain in oklahoma? a. the wichita mountains b. the arbuckle mountains c. the sandstone hills d. the ouachita mountains

Explain how a convection current in the earth is formed.

How do oceanographers measure the salinity of ocean water?