Natural hazards

Question 1

Give an example of a natural hazard

Answer 1

Floods, hurricanes, earthquakes, volcanoes, tsunamis (and many more)

Question 2

How does a natural hazard become a natural disaster?

Answer 2

It becomes a natural disaster when the loss of life and damage to property becomes too great for the people affected to cope with on their own

Question 3

What are each of the layers called?

Answer 3

1. Crust
2. Mantle
3. Outer core
4. Inner core

Question 4

What are earthquakes and volcanoes caused by?

Question 5

What is the earths crust made of?

Answer 5

Rock

Question 6

What does the earths crust ‘float’ on?

Answer 6

It ‘floats’ on the semi-solid rock of the mantle

Question 7

What are the sections of the earths broken crust called?

Question 8

What are the edges of tectonic plates called?

Answer 8

Plate boundaries

Question 9

What are A, B and C?

Answer 9

A: Crater

B: Vent

C: Magma chamber

Question 10

What is Tephra?

Answer 10

Lumps of solid magma and mountainside raining down out of the sky (volcanic bombs)

Question 11

What are lahars?

Answer 11

Fast flowing rivers of mud and ash

Question 12

What are pyroclastic flows?

Answer 12

Burning poisonous flows of gas and ash that can rain down the volcano sides at speeds of 200m/s and have temperatures of 750oC

Question 13

What are lava flows?

Answer 13

These are rivers of running lava. They destroy everything in their path

Question 14

What are landslides?

Answer 14

Earthquakes during the eruption can cause land to slide