5) What caused the fierce competition between US and Russian scientists to become more intense?

The permo-triassic extinction event had a greater impact on the number of earth's species than did the extinction event at the end of the cretaceous true false

The idea that government is not above the law is an example the principle of powers between state and national governments.the principle power.coining money is an example of athe concept that goverment's powers come from the people is

The author of the article, arthur brooks, has been president of the american enterprise institute since 2009, an organization committed to protecting free enterprise in the united states.he is the author of several books, including "the road to freedom: how to win the fight for free enterprise."