The speed of light is used to measure distances in space because

light travels really fast

light travels best in space

the distances are so immense

the distances are unknown

Korea is a good example of a (n) a. sovereign state b. nation-state existing in a unified condition. c. ethnicity divided between more than one state. d. colony divided between more than one ethnicity. e. patron-state

How does building a large shopping complex over a very small watershed affect the river's water supply

Name of waters between thursday island mainland

Which is the largest sphere of earth? geosphere, hydrosphere, cryosphere, biosphere, or atmosphere?

The middle east has strategic global importance because a. it has large oil and gas reserves. b. it is the crossroads of the world. c. most nations have democratic governments. d. most nations have free trade agreements with the united states.

Planets travel at a constant rate around the Sun. a. True b. False

Why do the North and South pole experience seasons differently than the rest of the planet? Why do they have periods of continuous daylight or continuous darkness?

According to the International Astronomical Union, which of the following is one of the criteria for an object to classified as a Planet? Select all that apply.

What physical features are the five largest cities in the u. S. Near?

Because of his failed economic plan, Mao Zedong later opened China up to foreign trade. True False