Plate Tectonics (till volcanoes intro)

Name the process that drives tectonic plates to move.

(a)  

Where magma spreads out beneath the plates, plates are being dragged along and move away from each other.

• true

• false

Oceanic crust are thin (5-8 km) whereas Continental crust are thick (35-70 km)

• true

• false

Oceanic crust are older (>4 byo) whereas Continental crust are younger (< 200 myo)

• true

• false

Oceanic crust are located beneath the deep oceans whereas Continental crust are located beneath the earth's continental landmasses and under shallow seas close to continents.

• true

• false

Oceanic crust consists largely of granite while Continental crust consist largely of basalt.

• true

• false

Continental crust are buoyant and never subducts.

• true

• false

Oceanic crust always subducts.

• true

• false

The Himalayas Fold Mountain is found along the convergent plate boundary between __________ and __________ plate.

• Indian

• Pacific

• Arabian

• Eurasian

(a)   is the process whereby the denser plate dives underneath the overriding plate and into the mantle.