Planetary Geology Ch 9

Question 0

Plate tectonics plays a crucial role in the stability of

Answer 0

Earths climate

Question 1

Only planet shaped primarily by ongoing

Answer 1

Plate tectonics

Question 2

How can continents move apart in time

Answer 2

Sea floor spreading

Question 3

Thinner, denser , and younger than continental crust

Answer 3

Sea floor crust

Question 4

Sea floor crust made of

Answer 4

Basalt

Question 5

Continental crust made of

Answer 5

Granite

Question 6

Sea floor plate meets

Answer 6

Continental plate.

Question 7

Why do terrestrial planets have different geology

Answer 7

Distance from sun
Size
RotAtion speed

Question 8

All 4 planets were heavily cratered t or F

Answer 8

True

Question 9

Volcanos and tectonics depend on planets?

Answer 9

Size

Question 10

Small worlds ?? So they have not had ?,? For billion of years.

Answer 10

Cooled quickly. Volcanos or tectonics

Question 11

PlAte tectonics are not just attributed to

Answer 11

Size ;Venus

Question 12

A planets geology is largely destined

Answer 12

From birth

Question 13

X is more important on earth

Answer 13

Erosion

Question 14

?? May be important to our existence

Answer 14

Plate tectonics

Question 15

Thinner lithosphere means

Answer 15

More geological activity

Question 16

Crust and mantle make up

Answer 16

Lithosphere .

Question 17

Most dense to least dense layers

Answer 17

Core , mantle, crust

Question 18

3 ways interiors get hot

Answer 18

Heat of accretion
Heat of differentiation
Heat of radioactive decay

Question 19

3 ways interiors cool off

Answer 19

Convection heat material expands and rises
Conduction heat from one thing goes to other by contact

Radiation emit thermal radiation characteristic of their temps. Low temps they radiate in the infrared.

Question 20

What causes geological activity

Answer 20

Interior heating. Mantle convection , lithosphere thin, interior partly molten

Larger planets cool Slowly, stay active longer

Question 21

A planets magnetic field needs 3 things

Answer 21

Inner layer of electrically conduction fluid, convection of that fluid, and rapid rotation . We have all three .

Question 22

How do craters reveal a surfaces geological age.

Answer 22

More craters show older surface. Some have been erased .

Question 23

What geological processes shaped our moon

Answer 23

Craters, young lava, small

. Tectonics no erosion cuz little atmosphere.

Question 24

What geological processes shaped Mercury?

Answer 24

Craters volcanoes

Question 25

What geological process shapes Mars

Answer 25

All four!! tallest volcano, biggest canyon