Apart from the land bridge theory what other theories exist about how the first americans reached the north america and south america

The diffusion of religion is biggest described as the process of

Read case #5 - "targeting target" (on pages 77-78 of your textbook), then answer the following questions: do you think it was ethical for authorities to use one of the high-ranking members to trap other gang members? why or why not? how would you approach the target situation? use the internet to research and find the best practices to protect from identity theft.

If a swimmer is traveling at a constant speed of 0.85 m/s,how long would it take to swim the length of a 50m olympic sized pool?