Match the dates of these events that to expand the united states: 1. 1803 completion of the transcontinental railroad 2. 1830 homestead act 3. 1845 louisiana purchase 4. 1848 annexation of texas 5. 1862 indian removal act 6. 1869 california gold rush

yes based on alexanders actions he deserved the title of "the great". his empire covered about 3,000 miles and he was able to establish the empire over a 13 year period of time. he was able to conquer many different places. he also defeated the persians. he conquered egypt and developed a city and named it after himself.

food chain i would say only because there is competition on getting food and survival