Which Polish leader established an independent trade union union called Solidarity in 1980, and was elected president of Poland in the free elections of 1989?

A.) Janos Kadar
B.) Lech Walesa
C.) Wladislaw Gomulka
D.) Imre Nagy

Lech Wałęsa

Explanation:

It officially registered on 10 November 1980. Lech Wałęsa and others formed a broad anti-Soviet social movement ranging from people associated with the Catholic Church to members of the anti-Soviet left.

ww1 weapons: tank. tanks were used for the first time in the first world war at the battle of the somme. they were developed to cope with the conditions on the western front. the first tank was called 'little willie' and needed a crew of 3.

that would be the steamboat because none of the other things are forms of transportation