6.3 THE RESTLESS EARTH

Question 1

What are earthquakes?

Answer 1

Earthquakes happen when tectonic plates move against each other suddenly

Question 2

Clues that earthquakes may happen soon:

Answer 2

*Earthquakes are common at moving plate boundaries
1. More or bigger vibrations in the Earth’s crust (Can be measured using a seismograph)
2. Large amounts of radon gas suddenly escape from cracks in the crust

Question 3

What are fold mountains?

Answer 3

Fold mountains may form where tectonic plates push together.