2) the xochicalco solar zenith tube xochicalco is an ancient city in central mexico at latitude 19 degrees n, and was populated by 20,000 or more people in the years 700-900 ad. a vertical shaft in the ground lead to an underground chamber, and on certain dates the sun shines directly down the "zenith tube." on how many days each year will this happen? what is the declination of the sun on these days? (5pts) a) on what days or the sun shine directly down the tube? (5pts) use either method listed below to you. b)

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.

true

explanation:

anyone would be able to cash the check when there is no name