Exam_1a

Exam_1a - Name: Geology 101 Exam 1 1. From choices below,...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
1. From choices below, the best estimate of the age of the Universe is ____________ old. a. 5 million b. 6 billion c. 14 billion d. 100 billion 2. Strong evidence that the Universe is expanding comes from the fact that the light emitted from distant galaxies appears to be ____________. a. red shifted b. blue shifted c. green shifted d. none of the above 3. Atoms that are heavier than iron are generally produced by ____________. a. fission reactions within stars b. fusion reactions within stars c. explosion of supernovas d. the Big Bang 4. Chemically, the Moon is quite similar to ____________. a. sea water b. Earth’s crust c. Earth’s mantle d. Earth’s core 5. Differentiation of the core from the mantle early in Earth’s history was possible because the planet was ____________ at the time. a. very cold b. very hot c. very small d. the only planet in the Solar System 6. Heat transfer that occurs through the movement of a fluid, driven by temperature differences within the fluid, is called ____________. a. radiation b. conduction c. convection d. adhesion Name: Geology 101 Exam 1
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
7. In the whole Earth, the four most common elements are oxygen, silicon, magnesium, and ____________. a. copper b. lead c. iron d. zinc 8. The most common minerals within Earth are ____________. a. silicates b. carbonates c. oxides d. hydroxides 9. Earth’s magnetic field is generated by ____________. a. the flow of the liquid inner core b. the flow of the liquid outer core c. the convective flow of the mantle d. magnetic minerals within the crust 10. The densest layer of Earth is the ____________. a. crust b. mantle c. outer core d. inner core 11. The distinction between the crust and mantle is primarily on the basis of a difference in ____________; the distinction between the lithosphere and asthenosphere is primarily on the basis of a difference in ____________. a. chemistry (mineral content); degree of physical rigidity b. color; chemistry (mineral content) c. degree of physical rigidity; chemistry (mineral content)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This document was uploaded on 10/28/2011 for the course GEOL 101 at UNC.

Page1 / 7

Exam_1a - Name: Geology 101 Exam 1 1. From choices below,...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online