Natural Hazards

Question 1

What Is A Natural Event?

Answer 1

A natural event threatens people and have the potential to harm people, cause damage, destruction and death.

Question 2

What are the 4 types of plate Boundary?

Answer 2

There are collision, Conservative, Constructive and Destructive.

Question 3

What Happens In a Constructive plate boundary?

Answer 3

Two plates move apart from each other causing a gap to appear. Lava rises up from the mantle to fill the gap. This creates new land.

Question 4

What happens in a Conservative plate margin?

Answer 4

Two plates try to move side by side. Friction makes them stick so movement is very difficult.
Pressure builds up steadily.
The pressure gets great so a catastrophic slip
occurs.

Question 5

What happens in a Collision plate margin?

Answer 5

Two continental plates move together.
They are equally dense so neither can sink.
Sedimentary rocks between the plates are pushed upwards.

Question 6

What happens in a destructive plate margin?

Answer 6

An ocean crust moves towards a continental crust.
Denser oceanic crust is forced down below the continental crust.
The Oceania plate is destroyed in the mantle and magma rises up.

Question 7

What are the two scales of measuring earthquakes?

Answer 7

They are the Richter scale and the Mercalli Intensity.