Geography, 11.10.2019 01:00 CristianPaz
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)
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Nwhat way does renewable energy differ from nonrenewable energy?
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Geography, 24.06.2019 04:20, Gideon3291
Liquefaction is a. a quicksand-like condition arising in some wet soils during earthquakes. b. flooding caused by tsunamis. c. flooding of coastal areas due to tectonic subsidence. d. flooding caused by dam failure resulting from an earthquake.
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2) the xochicalco solar zenith tube xochicalco is an ancient city in central mexico at latitude 19 d...
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