Tectonics And Processes And Landforms

Question 1

What are the layers of the earth in order

Answer 1

Crust
Mantle
Outer core
Inner core

Question 2

What is the material and Consistency of the crust made of?

Answer 2

Granite and Basalt - Solid

Question 3

What is the material and consistency of the Mnatle made of ?

Answer 3

Molten Rock- Magma
Calcium Magnesuim iron
Solid and Liqyid

Question 4

What is the material and consistency of the Outer and Inner core

Answer 4

Outer - Iron and Nickel, liquid
Inner - Iron and Nickel, solid

Question 5

What Is a tectonic plate?

Answer 5

A rigid segment of the Earths crust which floats on the heavier semi-molten rock

Question 6

What were the four pieces of Alfred Wegners evidence.

Answer 6

The apparent fit of the continents - Jigsaw puzzle of the coastlines of some countries
Fossil Correlation - identical fossils have been found in rocks on coastlines either side of the ocean
Rock and Mountain correlation - identical rocks and mountain structures have been found on either side of the ocean
Paleoclimate Data - Coal has been found in cold regions and glacial evidence have been found In warmer regions.

Question 7

How do Convection Currents work?

Answer 7

1. The heat from the core heats up the molten magma
2. As the magma heats up, it starts to rise and move upwards towards the crust
3. As the magma gets close to the crust, it starts to cool. Once it cools it starts to sink back down to the core
4. As this is cooling and sinking, it drags and moves the floating pieces of the crust on top of it.

Question 8

How do Tecronic plates move?

Answer 8

Convection currents

Question 9

What plate boundary moves away from each other?

Answer 9

Constructive - Allows magma to rise from the mantle below
2 oceanic plates

Question 10

What plate boundary moves towards each other but the less dense subducts?

Answer 10

Destructive - oceanic crust subducts under the continental crust

Question 11

What plate boundary moves towards each other but push each other up?

Answer 11

Collision zones - 2 continental pushed up and down

Question 12

What plate boundary slide past each otger

Answer 12

Conservative - 2 continental plates

Question 13

How does a Hotspot form?

Answer 13

Hot part of the mantle causes rocks to melt. Magma plume
Magma rises up through crust forming volcanoes. As the plate moves, the volcano is carried away from the Hotspot and becomes inactive. A new volcano can form above the hotpspot

Question 14

Facts about composite volcanoes

Answer 14

Made up of alternating layers of kava and ash
Destructive boundary
Eruptions are infrequent but violent and can include volcanic bombs
Pyroclastic flows can occur
Steep sided

Question 15

Facts about shield volcanoes

Answer 15

Constructive boundary
Made of layers of Lava
Gentle slopping sides
Eruptions often or continously but gentle

Question 16

How are Lava flows creates?

Answer 16

Magma erupts from a volcano

Question 17

How is a Pyroclastic flow created?

Answer 17

Extremely hot burning anything in its path after a explosion

Question 18

How are ash clouds created?

Answer 18

Where a violent explosion eruption ejects volcanic ash into the atmosphere

Question 19

What is a earthquake?

Answer 19

A earthquake is the shaking and vibration of the Earths crust due to movement of the Earths plates.

Question 20

Define short term response

Answer 20

A response in the hours, days and weeks immediately after an earthquake or disaster has happened

Question 21

Define Long Term repsonse

Answer 21

Responses that go on for months and years after an earthquake or diaster

Question 22

List some things you can use to reduce tectonic disasters

Answer 22

Seisometer - Predict
Early Warning Systems - Predict
Hazard Maps - Prepare
Seismic retrofitting - Prepare
Earthquake Kits - Protect
Emergency services - Protect