When did the Appalachian mountains form?

2. Which property most determines water's vertical position in the ocean? A density B velocity C organic content D oxygen content ture

Which describes how Africa was divided into countries? a. Boundaries were made according to cultural similarities. b. European powers allowed Africans to decide their own boundaries. c. Ethnic groups were split into different countries. d.

What was the primary cause of the growth in emissions that results in global warming? A.) human activity B.) mining operations C.) melting ice caps D.) cars

What is one of the causes of daily variations in temperature on a planet's surface?

Approximately how much of earth's surface is covered by land

Ryan lives in Texas. For vacation, he wants to drive to a foreign country that is warm and English-speaking. Which of the following vacation spots would be the best choice for Ryan?

After World War II, President Dwight D. Eisenhower believed developing which of the following would benefit the growth of cities as well economic growth in general?

Earth's biosphere is

Develop nations have usually moved away from agriculture as a primary source of income and have what

What is the total distance in miles from San Diego International airport to Montgomery Field, then from Montgomery Field to Brown Field Municipal Airport, and then finally from Brown Field Municipal Airport back to San Diego International airport?