AST 101 Study Guide - Midterm Guide: Plate Tectonics, Roland Jupiter-4, Mantle Convection
Document Summary
2- how fast do plates move on the earth: a few centimeters per year, a few millimeters per century, a few kilometers per century, quite fast, but only during earthquakes, about 1 mile per hour. 4- as the solar nebula shrank in size: its mass, temperature and density all increased, it gained energy, angular momentum and flattened c) Its rate of rotation and temperature increased, and it flattened: all of the above are correct. 5- which of the following is not characteristic of the terrestrial planets: smaller size and radius than jovian planets, more moons than jovian planets, higher density than jovian planets, solid surface, more closely spaced together than jovian planets. Very few solid bodies in the solar system show craters. 7- as the amount of greenhouse gas in the atmosphere increases the amount of energy: absorbed by earth"s surface increases, emitted by earth"s surface increases, both a) and b, neither a nor b.
