An astronomer's work should explain past astronomical observations as well as a. verify hypotheses. b. predict future observations. c. describe the past. d. perform calculus upon observations.

As one travels north leaving south america, the first country encountered on the central american land bridge is

What happened in Russia as a result of actions taken by Peter the Great? (1) Russia was weakened by French invasions. (2) Catholicism was adopted as the state religion. (3) The Duma was reformed and the serfs were freed.

Nancy Folbre, an economist at the University of Massachusetts, Amherst, argued: "We must take responsibility for governing the commonslong dashnot just the quaint old-fashioned village green, but things that cannot easily be privatizedlong dash

A student is writing a research paper about drunk driving in the United States. Which piece of information is objective?

The outer planets are made mostly of gas which makes them denser than the gaseous inner planets. less dense than the gaseous inner planets. denser than the solid inner planets. less dense than the solid inner planets.

What are some ways that slate is used?

What is deflation in earth science?

In Wegener's view, what caused mountain ranges to form? A) volcanoes B) Earth shrinking C) meteorite impacts D) continents colliding

Which of the following is TRUE? A. Customs unions require the creation of a common currency. B. The European Union is a shallower and broader form of integration than NAFTA. C. A common market is more deeply integrated than a customs union. D.

What percentage of water vapor is found in the air? a. 0 to 1 percent b. 0 to 4 percent c. 0 to 8 percent d. 0 to 10 percent