What is the main difference between a citizen and a subject?

What is the spreading rate between North America and Europe

Weather balloons are often used to make measurements in which "sphere"?

Which of the following statements is true? A. The average thickness of the crust is 20 miles. B. The Earth's crust is made of different continental plates. C. The crust below the continents is made of granite. D. All of the above.

Which of the following is the best example of a cultural region? A. a territory known for its hot springs B. a region of land where all the mountains are capped in snow C. an area defined by the language spoken by the majority of the people D.

Describe three kinds of relationships between two bodies of rock that indicate which of the two bodies is the younger one.

Report writing on global warming

Which layer has the most fertile soil

Classify each planet as an inner planet or an outer planet. A. Planet A has 67 moons, and major parts of its atmosphere are hydrogen and helium. B.

The 2008 Summer Olympics was hosted by Beijing, China. True False

A system of terrestrial-sized planets has been detected in orbit around a millisecond pulsar. a. True b. False