Why did russia give up alaska answers?

What was gained through the gadsden purchase

Which is true about the monroe doctrine?

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