Why is the 15th century (the 1400’s) a century of change?

Which events occurred during the space race? check all that apply. (a) nasa was established. (b) yuri gagarin orbited earth. (c) the soviet union launched salyut. (d) the united states launched skylab. (e) the united states launched explorer 1.

Where does the availability of water pose the greatest problem

Would you rather live in a society that offers more economic freedom or economy equity? explain why and defend your answer.