Amanda is doing a report for her earth science class about the four seasons. which of the following would be an effective scientific model to incorporate in her project?
a.
a calendar indicating the first days of autumn, winter, spring, and summer
b.
four earth models, each with a different tilt to represent the earth’s position relative to the sun, lined up in order of season
c.
a poster board with pictures of weather characteristic of the four seasons
d.
a bar graph indicating average high and low temperatures for amanda’s area in the autumn, winter, spring, and summer

YES ITS B ON EDGUINITY

Explanation:

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.