This is a very big question. Reason being, there were probably hundreds of effects of westward expansion. But, there are a few that come to mind.
1. Indian Wars
2. Economic Boom
3. Increase in Amounts of New Immigrants
4. New Issues Involving Slavery That Led up to The Civil War
5. Manifest Destiny Achieved
6. United States Increased Trade Opportunities by Being On Two Sides of North America
7. New Infrastructure Jobs
8. Gold Rush
9. Lawless Territories
10. Disease Spread From East to West
D. china becouse every year they grow about 3 milliontrees
The answer is:
A number larger than 180 degrees.
Light beam messages are used in the hope of making contact with aliens and towards two planets that may be capable of supporting life. The messages were directed towards a red dwarf star and is expected to twelve (12) years to reach it.
You would most likely find them in a Savannah. There are many grasses and waters available for them to live.
