Which years shown on the graph had more than 200 strikes involving 1,000 workers?

Question:

Which years shown on the graph had more than 200 strikes involving 1,000 workers?

1950, 1960, and 1970.

Hope this helps, have a good day. c;

he believed that congress would be better not dealing with "lobbyists", or people who seek to influence (a politician or public official) on an issue, since historically, they had problems with these kinds of people. he thought lobbying produces benefits, but should be carefully monitored.