Which nation surpassed the united states as the world's leading emitter of carbon dioxide and other greenhouse gases in 2007?

The arizona department of transportation wishes to survey state residents to determine what proportion of the population would like to increase statewide highway speed to 75 from 65 mph. at least how many residents do they need to survey if they want to be at least 99% confident that the sample proportion is within 0.09 of the true proportion?

Loftus used her research to prove that a. memories of childhood trauma are usually true b. adults’ memories are concrete and rigid c. children have better memories than adults d. false memories could be created using suggestion

When zhang qin went to explore west, he brought back stories of