My acount got deleted all of u who were my freinds freind me again please

Who was a leader of the soviet union. a) winston churchill b) fidel castro c) harry truman d) mikhail gorbachev

How are the republican and democratic presidential candidates chosen? a. they are nominated by their state governments. b. each is nominated by his or her respective party. c. each is chosen by the governor of his or her home state. d. they are chosen by the house of representatives.

Indian scholars invented all of the following that we use today except .