Ecosystems are in danger from all of the following except

What happens when the ocean breaks pebbles into smaller and smaller pieces?

Which of the class pyramids above correctly shows the race-based class system used in the Spanish colonies in the Americas? A. One (1) B. Two (2) C. Three (3) D. Four (4)

What enables U. S. citizens to consume a disproportionately large amount of products compared to the rest of the world? A. large oil reserves OB. high per capita income C. an agricultural surplus D. many cultural exports

Seasonal temperature changes in the climate in New York are most likely caused by.

Which of the following statements about the Great Slave Lake is true? A. The Great Slave Lake is the saltiest lake in the world. B. The Great Slave Lake is drained by the Mackenzie River. C.

Why did Galileo's observations of moons orbiting Jupiter disagree with the theory of the universe accepted up to that time in history?

Which of the following is an example of an artifact? a. bones b. fossils c. rock layers d. pottery

Which ocean borders the United States on the east and contains resources such as natural gas and petroleum? A. the Atlantic Ocean B. the Pacific Ocean C. the Arctic Ocean D. the Indian Ocean

What causes the long days and nights above the artic circle A: The tilt of Mars' axis accounts for the long days and nights. B; The tilt of the sun's axis accounts for the long days and nights.

Witch South America country is the farthest place on the earths surface from the earths center located Brazil Ecuador Peru Chile