Plate tectonics

Question 1

What is the lithosphere?

Answer 1

The crust with the coolest temperature

Question 2

What is the asthenosphere?

Answer 2

The layer underneath the lithosphere with semi molten rocks

Question 3

What is the outer core made of?

Answer 3

Liquid iron nickel alloy

Question 4

What is the inner core made of?

Answer 4

Soiid iron nickel alloy

Question 5

What is the mohorovicic discontinuity?

Answer 5

The division in the lithosphere between the mantle and crust

Question 6

What is isostasy equilibrium?

Answer 6

The pyshical, chemical and mechanical differences which allow the crust to float on water. The SE of the UK is sinking, compared to NW rising due to isostatic rebound.

Question 7

What are tectonic plates?

Answer 7

Sections of the lithosphere which are cracked

Question 8

How many plates is the earth split into?

Answer 8

7 major and 8 minor

Question 9

What are constructive (divergent plates)?

Answer 9

Plates move apart, creating rift valleys or increasing the water between land

Question 10

What are destructive (convergent) plates?

Answer 10

Denser oceanic plates are subducted under the continental plates, creating volcanoes.

Question 11

What are conservative plates?

Answer 11

Plates that slide past each other causing earthquakes.