Tectonic Hazards

Question 1

What is the Earth’s outer layer called

Answer 1

The crust

Question 2

Tectonic plates

Answer 2

Earth’s crust divided into slabs

Question 3

What are the 2 different types of crust

Answer 3

• continental (thick, less dense)
• oceanic (thinner, more dense)

Question 4

What are the 3 types of plate margins

Answer 4

• Destructive (towards each other)
• constructive (away from each other)
• conservative (side by side)

Question 5

Why do people choose to live by plate margins even though it is dangerous?

Answer 5

• valuable minerals
• tourism

Question 6

Destructive volcanoes

Answer 6

• denser plate (oceanic) subducts
  beneath the other (continental) into
  the mantle
• friction occurs causing it to melt and
  become molten magma
• magma forces its way up to the
  surface (vents) to form a volcano

Question 7

Constructive volcanoes

Answer 7

• 2 Plates move apart
• magma then rises in between to fill the
  gap
• this creates sheila volcanoes