4.1 Internal Earth and Continental Drift

Question 1

5 ocean basins

Answer 1

pacific atlantic indian arctic southern

Question 2

when did the ocean begin forming

Answer 2

3.7 billion years ago

Question 3

the largest habitat in the world, the ocean, makes up __ % of the earth’s surface

Answer 3

71

Question 4

layers of the earth (from inside to outside)

Answer 4

core, mantle, asthenosphere, lithosphere, crust

Question 5

core

Answer 5

made up of nickel, iron, radioactive elements(decay and create heat)

Question 6

mantle

Answer 6

melted magma

Question 7

asthenosphere

Answer 7

molten liquid layer on which crust moves on

Question 8

lithosphere

Answer 8

plates sliding around

Question 9

crust

Answer 9

brittle layer of rock

Question 10

supercontinent Pangaea is proof

Answer 10

of moving continental plates because of magma creating convection currents

Question 11

subduction

Answer 11

oceanic lithosphere and some continental lithosphere is recycled into the Earth’s mantle at convergent boundaries

Question 12

convergent plate boundary

Answer 12

area on Earth where two or more lithospheric plates collide.

Question 13

divergent plate boundary

Answer 13

linear feature that exists between two tectonic plates that are moving away from each other. Divergent boundaries within continents initially produce rifts, which eventually become rift valleys

Question 14

transform in plate boundary

Answer 14

places where plates slide sideways past each other. At transform boundaries lithosphere is neither created nor destroyed. Many transform boundaries are found on the sea floor, where they connect segments of diverging mid-ocean ridges.

Question 15

ring of fire

Answer 15

area of high volcanic activity in Pacific

Question 16

continental crust is ____ but less dense than the Oceanic Crust, which will always subduct the continental crust.

Answer 16

thicker