Ideas for legislation can be composed by what or who?

Ideas for legislation can be composed by either the House of Representatives or the Senate. They can even be proposed by the President, although he can not draft legislation. 

The correct answer is the hindu kush mountains.

The transcontinental railroad provided a means of fast transportation. it cut a 6 month trip into 6 days, created jobs for many people and encouraged immigration. the homestead act played a huge role in western expansion; it allowed settlers to begin a fresh start, and gave them land in exchange for their residence for up to five years and a small fee.