Tectonic Theory

Question 1

What has theory helped up underhand ?

Answer 1

Where major landforms form.

Where natural hazards occur

Question 2

Name the things which support theory ?

Answer 2

Plate boundaries and what happens here

Convection currents
Slap pull
Ridge push

Question 3

What doesn’t support theory

Answer 3

Hot spots

Question 4

What was 300 million years again

Answer 4

Super continent Pangaea

But over time have drifted Alfred Wegner said this was to do with continental drift

Question 5

Evidence of Pangea

Answer 5

Continents showed remarkable conformity.

Jigsaw puzzle

Rare fossils four in rocks of different continents now separated
Rocks
Mountain ranges

Question 6

Convection currents

Answer 6

Drive plate tectonic movement
Heat generated from radio active decay of isotopes in deep interior of earth creates molten magma in asthenosphere.
This material is less dense so rises up to near the crust, they then cool and sink again.
This caused the plates on top to move depending on the convention current - destructive / constructive / conservation

Question 7

What forces drive plate movement ?

Answer 7

Slab pull
Ridge push
Convection currents