What was the main reason that Jews fled to the United States at the beginning of the twentieth century?

What are canada’s major boundaries?

Less developed nations have low literacy rates. true or false

Tides are caused by a differences in the gravitational force of the sun at different points on earth. differences in the gravitational force of the moon at different points on earth differences in earth’s gravitational field strength at different points on earth’s surfac fluctuations in the gravitational attraction between earth and the moon.