Section 1 - Tectonics and hazards

Question 1

Name 2 Atmospheric hazards

Answer 1

1. Hurricane

2. Tropical storm

Question 2

Name 2 Geophysical hazards

Answer 2

1. Volcano
2. Earthquake
3. Hurricane
4. Tsunami

Question 3

Name 2 Hydrological hazards

Answer 3

1. Flooding

2. Droughts

Question 4

Name 2 Biological hazards

Answer 4

1. Forest fires

2. Bilharzia snails

Question 5

Name 3 facts about continental plates

Answer 5

1. They are very thick but weigh less than Oceanic plates
2. They are older than Oceanic plates
3. They carry Land masses
4. They can’t be created or destroyed

Question 6

Name 3 facts about Oceanic plates

Answer 6

1. They are thin but denser than continental plates
2. They are younger than continental plates
3. They carry water
4. They are constantly being destroyed and replaced

Question 7

What causes convection currents

Answer 7

Heat from the earth’s core causes the mantle to move in circular directions

Question 8

What is slab pull

Answer 8

When gravity acts on tectonic plates and pulls them apart

Question 9

What is Ridge push

Answer 9

When the mantle convection currents move towards each other, it pushes tectonic plates towards each other

Question 10

What is a constructive plate boundary and what does it cause

Answer 10

When 2 oceanic plates pull apart from each other. It causes a mild earthquake and mild volcanic eruption

Question 11

What is a destructive plate boundary and what does it cause

Answer 11

When the oceanic plate subdues and is pushed under the continental plate after they collide. It causes violent earthquakes and volcanic eruptions

Question 12

What is a conservative plate boundary and what does it cause

Answer 12

When 2 plates grind past each other, either in opposite directions or in the same direction but at different speeds. They cause tsunamis, earthquakes and break up the land such as the San Andreas Fault

Question 13

What is a primary effect

Answer 13

One that is directly causes by the disaster, such as deaths

Question 14

What is a secondary effect

Answer 14

Something that happens as a result of the earthquake, such as landslides

Question 15

What is an short term response

Answer 15

An immediate response directly after the disaster

Question 16

What is a long term response

Answer 16

Responses that happen months and years after the disaster

Question 17

How do we protect ourselves prom earthquakes?

Answer 17

Predict, Plan and Protect

Question 18

Name 2 methods of earthquake prediction

Answer 18

1. Animals move uphill and act strangely
2. Water levels rise
3. Scientists use Tiltmeters
4. Seisometer detect foreshocks

Question 19

Name 2 methods of Earthquake planning

Answer 19

1. Have lots of green spaces for people to avoid falling buildings
2. Educate people on earthquake safety
3. Leave emergency supplies throughout the city
4. Build earthquake proof buildings

Question 20

Name 2 methods of earthquake protecting

Answer 20

1. Pack a survival bag, this might contain water, flashlights, generators, canned food, radios.
2. Have emergency earthquake plans at school

Question 21

What are the 3 earth cells called

Answer 21

1. Polar
2. Ferrel
3. Hadley

Question 22

Name 2 facts about the polar cells

Answer 22

They are located at the poles of the earth and have cold air due to it moving in an upwards direction

Question 23

Name 2 facts about Ferrel cells

Answer 23

They are located in-between the Polar and Hadley cell and have warmer air due to moving in a clockwise direction

Question 24

Name 2 facts about Hadley cells

Answer 24

They are located near the equator and have hot air

Question 25

Why is the equator the hottest point of earth

Answer 25

It’s the part of the earth closest to the sun, meaning the rays have less area to travel, meaning they don’t lose energy