plate tectonics

Question 1

Crust

Answer 1

The outermost shell of rocky planet

Question 2

Rift valley

Answer 2

A long narrow valley between two diverging continental plates

Question 3

Mantle

Answer 3

layer of molten rock between the crust and core

Question 4

core

Answer 4

made up of mostly iron.separated into the outer core (molten) and inner core (solid)

Question 5

continental drift theory

Answer 5

The theory that continents gradually drifted oer time to their present positions.

Question 6

tectonic plate

Answer 6

that makes up the outer part of the earth,including the crust and upper mantle (lithospheric plates)

Question 7

Asthenosphere

Answer 7

A thin layer of earth about 150 miles thick at the boarder between the mantle and the crust.

Question 8

Convection current

Answer 8

the process in which the hotter part of gas or liquid rise to the top and the cooler, denser parts sink.

Question 9

convergent boundary

Answer 9

When tow tectonic plates together.

Question 10

mountains

Answer 10

uplift of crustal plates that from elevated landmasses