Announcements Ch. 5 homework will post tomorrow Test 2 score will post by Monday night Scores on Mastering Physics continue to be updated Expect to be.
1 Global Effects Lecture #21 HNRT 228 Spring 2015 Energy and the Environment Adapted from GMU, UNM and USGS.
The Earth. General Features Mass: M Earth = 6 x 10 27 g Radius: R Earth = 6378 km Density: = 5.5 g/cm 3 Age: 4.6 billion years.
