A LEVEL GEOGRAPHY EXAM SCRIPT TESTED
QUESTIONS AND SOLUTIONS 100 PERCENT
CORRECT
◉ Earth's Structure. Answer: - Inner core is 6000°C made up of solid
iron and nickel
- Outer core liquid melted 2,000 Km thick
- Mantle semi molten
◉ Asthenophere. Answer: The upper semi molten part of mantle
◉ Lithosphere. Answer: The rigid mantle and crust
◉ Types of crust. Answer: - Continental- 30-70 km thick and less
dense
- Oceanic- 6-10 km thick and more dense
◉ Convection currents. Answer: - Lower parts of mantle rise as
heated up, cool down become more dense and slowly sink
- Circular movements of semi-molten rock, create drag on the base
casing them to move
, ◉ Slab pull. Answer: At destructive plate margins, denser crust sub-
ducts, the sinking of plate pulls the rest of the plate towards the
boundary
◉ Ridge push. Answer: At conservative plate margins, magma rises
up forms new crust, heats surrounding rocks causing it to slope.
Gravity causes denser plate to move downward away from plate
margin, causes tectonic plates to move apart. Also called gravitational
sliding
◉ Sea-floor spreading. Answer: Tectonic plates diverge, magma rises
up then cools to form a new crust. the sea floor gets wider over time.
Creates mid-ocean ridges
◉ Constructive plate margins. Answer: Two plates move apart
(diverge), pressure is released at the margin causes mantle to melt
forming magma. Magma is less dense so it rises and can erupt to form
volcano, also form 2 land forms; ocean ridge and rift valley.
◉ Rift valley. Answer: When plates diverge, causes continental crust
to bulge and fracture, forming fault lines. As plates move apart, the
crust between parallel fault drops down from a rift valley.
◉ Destructive plate margins. Answer: Where 2 plates move towards
each other.
1) Oceanic-oceanic- Continental crust sub-ducts, heated by friction
and melts into magma, forms volcanoes. Fold mountains form where
plates meet.
QUESTIONS AND SOLUTIONS 100 PERCENT
CORRECT
◉ Earth's Structure. Answer: - Inner core is 6000°C made up of solid
iron and nickel
- Outer core liquid melted 2,000 Km thick
- Mantle semi molten
◉ Asthenophere. Answer: The upper semi molten part of mantle
◉ Lithosphere. Answer: The rigid mantle and crust
◉ Types of crust. Answer: - Continental- 30-70 km thick and less
dense
- Oceanic- 6-10 km thick and more dense
◉ Convection currents. Answer: - Lower parts of mantle rise as
heated up, cool down become more dense and slowly sink
- Circular movements of semi-molten rock, create drag on the base
casing them to move
, ◉ Slab pull. Answer: At destructive plate margins, denser crust sub-
ducts, the sinking of plate pulls the rest of the plate towards the
boundary
◉ Ridge push. Answer: At conservative plate margins, magma rises
up forms new crust, heats surrounding rocks causing it to slope.
Gravity causes denser plate to move downward away from plate
margin, causes tectonic plates to move apart. Also called gravitational
sliding
◉ Sea-floor spreading. Answer: Tectonic plates diverge, magma rises
up then cools to form a new crust. the sea floor gets wider over time.
Creates mid-ocean ridges
◉ Constructive plate margins. Answer: Two plates move apart
(diverge), pressure is released at the margin causes mantle to melt
forming magma. Magma is less dense so it rises and can erupt to form
volcano, also form 2 land forms; ocean ridge and rift valley.
◉ Rift valley. Answer: When plates diverge, causes continental crust
to bulge and fracture, forming fault lines. As plates move apart, the
crust between parallel fault drops down from a rift valley.
◉ Destructive plate margins. Answer: Where 2 plates move towards
each other.
1) Oceanic-oceanic- Continental crust sub-ducts, heated by friction
and melts into magma, forms volcanoes. Fold mountains form where
plates meet.
