Tectonics

Question 1

Structure of earth inside out

Answer 1

Solid inner core
Liquid outer core
Mantle(Mesosphere, Asthenosphere putty like, lithosphere hard as )

Question 2

Evidence of tectonics geological

Answer 2

Fit of continental plates between south America and Africa
The Appalachians and the Scottish highlands share similar rock types / age of rock

Question 3

Evidence of tectonics Biological

Answer 3

Brachiopids (Marine shellfish) found in Australian and Indian limestones
Marsupial bones found in China

Question 4

Divergent(constructive)plate boundaries

Answer 4

Create mid ocean ridges where 2 plates pull apart create mountains and mid ocean ridges(Mid Atlantic ridge) created iceland

Question 5

Convergent boundaries

Answer 5

features
Ocean trenches
Island arcs (Aleutian islands)
Submarine mountain regions
fold mountains

Question 6

Ridge push

Answer 6

Gravitational Force pushing newly formed buoyant crust down the slope of the ridge

Question 7

Slab pull

Answer 7

When the denser oceanic plate pulls the plate down with it

Question 8

Island arcs

Answer 8

1. Subduction:
   At convergent plate boundaries, one oceanic plate is forced beneath the other, a process called subduction. The denser, oceanic plate sinks down into the mantle, creating a deep ocean trench.
2. Melting:
   As the subducting plate descends, it reaches depths where the pressure decreases and the plate begins to melt. Volatile components, like water, are also released from the sinking plate, further aiding in the melting process.
3. Magma Formation:
   This partial melting of the mantle produces magma, which is less dense than the surrounding rock and begins to rise.
4. Volcanism:
   The rising magma erupts at the surface, creating volcanoes.
5. Island Arc Formation:
   Repeated eruptions of these volcanoes build up layers of volcanic rock, eventually forming islands. The islands are often arranged in a curved chain, creating an island arc.

Question 9

what is a volcanoe chain

Answer 9

Create by hotspots