Earth's climate over the last three million years is best characterized by a. persistent global warming. b. both ice ages and normal periods. c. alternating glacial and interglacial periods. d. warmer-than-average temperatures throughout earth's geologic time.

If the distance between two points on the ground is 10 miles and the distance between the same two points on a map is 4 inches, what is the map scale expressed as a ratio?

Which of the following is an accurate description of the recent political history of the democratic republic of the congo? a. religious tensions have escalated into full-scale civil war a number of times since the belgians left the country in 1960. b. the political leader who gained power after the overthrow of a corrupt dictator was assassinated. c. the military leadership felt the country was stable enough, so they permitted democratic elections to take place. d. in 1990, a dictator seized and has held power ever since.

What term describes the government positions that officials who passed the civil service exam became a part of?