What is a heliocentric model of the solar system

A heliocentric model of the solar system is the model in which the Sun is at the center of the solar system, and the Earth and planets all revolve around it.

Explanation:

The Heliocentric model was developed by the German astronomer, Nicolaus Copernicus in 2nd Century AD. This model was in opposition to the geocentric model, which stated that the Earth, and not the Sun, was at the center of the solar system. The Heliocentric model first faced tremendous criticism from supporters of the geocentric model. However, it was later accepted as an accurate representation of the solar system due to its mathematical validity and overall simplicity. The attached image represents the Heliocentric model.

wow this is so hard for me im only in elementry school still!

the first phase of the government’s plan for settlement was building the transcontinental railroad. the railroad provided a way to bring settlers and manufactured goods west and ship their agricultural and mining produce east. the transcontinental railroad was an essential artery for rapid development of the frontier.

the second phase of the government’s plan was a liberal land distribution policy that made it possible for many people to homestead. with these two key elements—transportation and cheap land—the government rapidly achieved its goal of persuading people to move west, settle on farms, and push back the frontier.