chapter 9 end of chapter excercises

Question 1

63. What are 3 energy sources driving the dynamic Earth?

Answer 1

solar, lunar, internal, thermal/energy

Question 2

64. Match the heat transfer process with the analogy: A. Conduction 1. Bucket line from river to Granny’s house. B. Convection 2. Each helper carries their own bucket. C. Radiation 3. Hose pumped at the river.

Answer 2

A. conduction-bucket line from river to grannys house
B. convection-each helper carries their own bucket
C. Radiation-Hose pumped at the river

Question 3

65. How does most of the heat from a campfire reach you?

Answer 3

Radiation

Question 4

66. What are the 4 geologic processes shaping the surface?

Answer 4

erosion, plate techtonics, volcanoes, impact craters and even humans

Question 5

67. About how many times bigger is the crater than the impactor?

Answer 5

8 times or 10 times greater

Question 6

68. Why is there so little erosion on other terrestrial planets?

Answer 6

no liquid water

Question 7

69. What are the 3 kinds of rocks?

Answer 7

igneous. metamorphic and sedmentary

Question 8

70. Who first proposed continental drift?

Answer 8

Aford wagner

Question 9

71. Why wasn’t continental drift accepted more quickly by

geologists?

Answer 9

He was a weather man

Question 10

72. Give a geographical example (a specific place) on Earth of A) a zone of convergence: B) a zone of divergence: C) a transform fault: D) a hot spot:

Answer 10

A. a zone of convergance-rocky mountains
B. a zone of Divergance-grand canyon
C. a transform fault- San andreas
a hotspot-hawaii or yellowstone

Question 11

73. The Earth’s continental crust is mostly made of what kind of igneous rock? How about the Earth’s oceanic crust?

Answer 11

Granitic

Question 12

74. What was the original atmosphere of Earth? The secondary atmosphere (from outgassing)

Answer 12

1. methane, water and nmaonia

2. carbon dioxcide, water and nitrogen

Question 13

75. Where did the oxygen in Earth’s atmosphere come from?

Answer 13

plants/photosynthesis

Question 14

76. Noting that Venus has 100× Earth’s atmosphere, which has more atmospheric N (Earth or Venus)? More atmospheric H2O?

Answer 14

venus, earth

Question 15

77. Firing a long range artillery shell south towards the equator which way should you point? (Hint: your target is moving faster eastward than you are).

Answer 15

east

Question 16

78. Which kind of interior seismic wave (S or P) DOES propagate through fluids and is faster?

Answer 16

p is faster and S is slower

Question 17

79. Why do surface seismic waves cause the most property damage?

Answer 17

because the property is on the surface

Question 18

80. Why does Earth’s air temp gradient have an extra zig-zag?

Answer 18

ozone layer

Question 19

81. What’s the expected consequence of the loss of the ozone layer? Of increased greenhouse effect gases?

Answer 19

1. more uv radiation

2. warmer tempature

Question 20

82. Since Jupiter spins faster than Earth would you expect more or less convection cells than Earth?

Answer 20

more convection