Key definition - The Natural Hazards summary

Question 1

Natural Hazards

Answer 1

A Natural Hazard is an event that has potential to affect people’s lives or property.

Question 2

Natural disaster

Answer 2

A natural disaster is a natural hazard that had already happened.

Question 3

Geological Hazard

Answer 3

Caused by land and tectonic processes.

Question 4

Meteorological Hazards

Answer 4

Caused by weather and climate. It includes tropical storms, other extreme weather also heatwaves and cold spells, and climate change.

Question 5

Destructive Margins

Answer 5

• Two plates moving towards each other

* Where two continental plates meet, collide and the ground is folded and forced upwards to create mountain range

Question 6

Constructive Margins

Answer 6

Two plates moving away from each other and magma rises from the mantle to fill the gap and cools, creating new crust.

Question 7

Conservative Margins

Answer 7

Two plates moving sideways past each other or moving in the same direction but a different speed.
•The crust isn’t created or destroyed.

Question 8

Continental crust

Answer 8

Thicker and less dense

Question 9

Oceanic crust

Answer 9

Thinner and denser