The idea of the sun in the middle of the solar system, with planets orbiting around it originated with whom?

Which statement best explains how the invention of corporations contributed to the economy in the 1800's

:) during the cold war, people were afraid of communists, both outside and inside the united states. the red scare and mccarthyism that grew out of these fears were damaging to the american way of life. during the mccarthy years, many of the freedoms guaranteed in the bill of rights were limited. write a paragraph explaining what lessons can be learned from the mccarthy era about what u. s. citizens need to protect in order to preserve the democratic political system and the american way of life.

In keeping their culture unchanged what do canadians fear the most?