Geologic Processes

Question 1

core

Answer 1

solid inner core of iron and liquid outer core (iron) which gives the
Earth its magnetic poles

Question 2

mantle

Answer 2

thick, solid zone consisting of iron, silicon, oxygen and magnesium.
The outermost layer of the mantle is a thin plastic layer of partially molten
rock - the asthenosphere

Question 3

crust

Answer 3

outermost and thinnest zone of the earth

Question 4

how much of the crust is oceanic?

Answer 4

71%

Question 5

how much of the crust is continental crust?

Answer 5

29%

Question 6

what are the nonrenewable resources found in earth’s surface?

Answer 6

fossil fuels, metallic minerals, nonmetallic minerals

Question 7

chemical makeup of the crust (top 4: most to least)

Answer 7

oxygen, silicon, aluminum, iron

Question 8

what does earth’s tilt cause

Answer 8

seasons

Question 9

describe how solar insolation affects wind currents and precipitation patterns.

Answer 9

Direct sun warms the air, causing it to rise. As it rises, the altitude causes the temperature to fall. The cooler air becomes more dense forming condensation and eventually precipitation. The cold, dry air will sink; creating a convection current

Question 10

where are faults most likely located?

Answer 10

near oceanic areas like coasts or just the ocean

Question 11

where are island arcs most likely located?

Answer 11

east of asia or west of alaska

Question 12

where are divergent boundaries most likely located?

Answer 12

west of south america

Question 13

how old is the earth?

Answer 13

4.5 billion years old