Tectonics

Why is the inner core of the Earth solid?

• it's very hot

• high pressure

• it is metal

• it is molten rock

Where can convection currents be found?

• inner core

• outer core

• mantle

• crust

Which layer of the earth is divided into pieces called tectonic plates?

• inner core

• outer core

• mantle

• crust

Why do the tectonic plates move?

• ocean currents in the hydrosphere

• winds in the atmosphere

• gravity

• convection currents in the mantle

In which type of plate boundary do the tectonic plates move apart?

• conservative or transform

• constructive or divergent

• destructive (collision zone)

• destructive (subduction zone)

Which type of plate boundary has mainly volcanoes and few large earthquakes

• conservative or transform

• constructive or divergent

• destructive (collision zone)

• destructive (subduction zone)

Which type of plate boundary involves one piece of oceanic crust sliding under a piece of continental crust

• conservative or transform

• constructive or divergent

• destructive (collision zone)

• destructive (subduction zone)

Where is the Ring of Fire

• round the Atlantic Ocean

• round the Pacific Ocean

• Round the Mediterranean Sea

• Around the Himalayan Mountains

How fast are the tectonic plates moving (more or less)?

• 5cm a year

• 5m a year

• 50cm a year

• 500cm a year

Which is an example of a convergent plate boundary (collision zone)

• Mid-Atlantic Ridge

• West coast of Mexico

• San Andreas Fault in California

• Himalayas