Global Hazards - Tectonics 2. Geography GCSE OCR B.

What is the outer layer of the Earth called?

• The crust (lithosphere)

• The inner core

• The mantle

• The outer core

Which type of plate boundary is this?

• Destructive

• Collision

• Constructive

• Conservative

In an earthquake, the point where the ground snaps and moves is called the..?

• Friction

• Epicentre

• Focus

• Seismic wave

What is the name for the belt around the Pacific Ocean where many active volcanoes and frequent earthquakes occur?

• The Ring of Ash

• The Ring of Fire

• The Ring of Lava

• The Ring of Magma

What are lahars?

• Glacial meltwater floods when the heat from volcanoes melts ice

• Hot rocky gas and ash clouds from explosive eruptions

• Very fast flowing lava flows

• Mudflows made from the mixing of ash and mud with rain water

What kind of plate boundary does Iceland lie on?

• Destructive

• Collision

• Constructive

• Conservative

How was Kenya affected by the eruption of Eyjafjallajokull?

• People experienced respiratory problems

• Ash covered homes across the country

• It disrupted peak holiday season for Kenyan families

• It was unable to export perishable foods such as beans by air

Which two animal behaviours are said to be a predictor of earthquakes?

• Bees stay in their hives

• Dogs go silent

• Snakes leave their homes

• Chickens stop laying eggs

Where is molten rock found?

• In the inner core

• In the mantle

• In the outer core

• In the crust

Which type of volcano has not erupted for a long time but still could?

• Active

• Dormant

• Extinct