What causes the greenhouse effect?
a. visible light can escape the atmosphere
b. earth radiates mostly visible light
c. earth radiates mostly infrared light
d. ultraviolet light cannot transmit through the atmosphere

Pl pl pl which of the following historic indian cultures did hernando de soto come in contact with during his expedition? (choose all that apply.) a. caddo b. quapaw c. kaw d. osage

Which statements describe characteristics of mdcs? higher standard of living increased agricultural focus more access to health care more access to transportation and communication more industry reduced educational opportunities shorter life expectancy

The us constitution establishes three branches of government. this system allows each branch to work within its own area of control while preventing any other branch from becoming too powerful. this concept is an illustration of which enlightenment philosopher’s idea?