What is one reason Native Americans attacked emigrants on the Oregon Trail?

How and why did many southerners attempt to stop the laws congress passed?

Need it now explain gorbachev’s policy of glasnost. how did this policy change the soviet union?

What were copernicus’s ideas about the order of the universe deemed to be dangerous to church thinking? (5 points) a.the church was invested in the idea that the earth was at the center of the universe b.copernicus was developing a new religion that would challenge the church c.the church feared his ideas threatened their control of european universities d.copernicus was a follower of luther and therefore could not be trusted