TEST YOUR KNOWLEDGE Answers on Page 40
Robert G. Font, CPG-03953
robertfontphd@gmail.com
1. We are presented with several samples of coccoliths. What are we looking at? a) Tooth-like microfossils related to extinct agnathan chordates (superclass of jawless fish). b) Individual plates of calcium carbonate formed by single-celled algae arranged in spherical shells.
c) Layered mounds, columns, and sheet-like sedimentary rocks that were originally formed by the growth of layer upon layer of cyanobacteria (single-celled, photosynthesizing microbes).
d) Petrified coconuts.
2. One of the following is a source of antimony: a) Rutile. b) Ilmenite. c) Stibnite. d) It is the stock market, Dude! If you build the wrong portfolio, you have major source of anti-money!
3. “Gauss” is a unit of measurement that applies to: a) Gravity. b) Magnetism. c) Radioactivity. d) Heavy meals of pinto beans and carbonated beverages.
4. One of the following was a carnivorous theropod of the Early Jurassic age:
a) Dilophosaurus. b) Saltasaurus. c) Anchisaurus.
d) Do not know for sure, Dude, but I think that I met one of his current relatives at a hotdog eating contest...
Image Source: Eduard Solà - Own work, CC BY-SA 3.0,
https://commons.wikimedia.org/w/index.php?curid=21099013
5. In our studies of geophysics, we wish to calculate the Earth’s moment of inertia. For simplicity, consider our planet to be close to a solid sphere. Recall that the moment of inertia for a solid cylinder is I = ½ M R2, where M is mass and R is radius. Also recall that, for the Earth, Me = 5.97 * 1024 kg and Re = 6.371 * 106 m. Which of the following applies? a) Ie = 12.7 * 1037 kg m2. b) Ie = 9.7 * 1037 kg m2. c) Ie = 2.7 * 1037 kg m2. d) OK, Dude, do you really want to know about inertia? Let me tell you about inertia; like I am not going to lift a finger to try to answer this atrocious question…
38 TPG •
Oct.Nov.Dec 2022
www.aipg.org
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