Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geography > Natural Hazards > Flashcards

Natural Hazards Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
1
Q

Atmospheric pressure

A

Those hazards to human health and wealth that are created in the atmosphere - including hurricanes and tornadoes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Drought

A

A prolonged dry period in the natural climate cycle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Geological hazards

A

An extreme natural event in the crust of the earth that pose a threat to life and property, for example, earthquakes, volcanic eruptions, tsunamis and landslides

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Hazard risk

A

The chance or probability of being affected by a natural event.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Natural hazards

A

A natural event that has a huge social impact.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Poverty

A

The state of not having enough material possessions or income for a person’s basic needs.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Tropical storm

A

A localised, very intense low-pressure wind system, forming over tropical oceans and with winds of hurricane force.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Composite volcanoes

A

A volcano with a stratified structure built up from sequential outpourings of erupted magma.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Conservative plate margin

A

Point where plates slide past each other in opposite directions, or in the same direction but at different speeds.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Constructive plate margin

A

Point where plates move apart from one another creating an opening in the crust.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Continental crust

A

Outermost layer of the earth comprised of different types of basalt rock.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Convection currents

A

Movements of energy in the mantle caused by the heat from the core.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

Destructive plate margin

A

The plates move towards one another and this movement can cause earthquakes and volcanoes.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Mantle

A

Layer of the earth containing magma.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Monitoring

A

Using scientific equipment to detect warning signs of event such as a volcanic eruption.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Planning

A

Identifying and avoiding places most at risk of hazards.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Prediction

A

Using historical evidence and monitoring, scientists can make predictions about where and when hazards can occur.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Primary effect

A

An immediate, direct result of a natural hazard.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Protection

A

Designing buildings that will withstand tectonic hazards.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Ridge Push

A

Gravitational force that causes a plate to move away from the crest of an ocean ridge.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

Secondary effect

A

A knock-on impact of a primary effect, indirect.

22
Q

Shield volcano

A

A wide, flat volcano formed by the eruption of highly fluid lava, which travels farther and forms thinner flows.

23
Q

Slab pull

A

The pulling force exerted by a cold, dense oceanic plate plunging into the mantle due to its own weight.

24
Q

Subduction

A

Occurs at destructive plate margins by which slabs of oceanic crust descend into the mantle.

25
Q

Atmospheric circulation

A

The natural process whereby general circulation of the earth and regional movements of air around areas of high and low pressure.

26
Q

Condensation

A

Change of the physical state of matter from the gas phase into the liquid phase.

27
Q

Convectional Rainfall

A

Occurs when the energy of the sun heats the surface of the Earth, causing water to evaporate to form water vapour.

28
Q

Coriolis effect

A

The pattern of deflection taken by objects not firmly connected to the ground as they travel long distances around the earth.

29
Q

Evaporation

A

When a liquid turns into a gas due to the heat from the sun.

30
Q

Extreme weather

A

Weather out of the ordinary that can cause harm to people and the environment.

31
Q

Eye wall

A

Strongest part of a tropical storm with strong winds and the heaviest rain.

32
Q

Pressure Belts

A

Seven areas that run laterally around the world with a similar pressure system.

33
Q

Saffir - Simpson scale

A

A system that classifies tropical storms from a scale of 1-5 based on the sustained wind speeds.

34
Q

Storm surge

A

A rise in sea level that occurs during tropical cyclones.

35
Q

Trade winds

A

Winds that reliably blow east to west just north and south of the equator.

36
Q

Wind shear

A

A change in wind speed and and/or direction over a short distance.

37
Q

Afforestation

A

The action of planting trees to promote carbon dioxide uptake.

38
Q

Axial tilt

A

The movement of the earth on its axis from 21.5 degrees to 24.5 degrees.

39
Q

Carbon capture and storage

A

The process of capturing and storing carbon dioxide before it is released into the atmosphere.

40
Q

Eccentricity

A

The changing orbit of the earth from elliptical to circular.

41
Q

Enhanced greenhouse effect

A

Additional heat retained due to the increased amounts of carbon dioxide and other greenhouse gases that humans have released into the atmosphere since the industrial revolution.

42
Q

Fluctuations

A

An irregular rising and falling in number or amount; a variation.

43
Q

Ice cores

A

A core sample that is typically removed from an ice sheet or a high mountain glacier.

44
Q

Industrial revolution

A

The transition to new manufacturing processes in Europe and the United states, involving the mass production of goods.

45
Q

Mitigation

A

Reducing the severity of climate change by removing CO2.

46
Q

Precession

A

The earth naturally wobbling taking 26,000 years.

47
Q

Pyroclastic flow

A

A dense, fast moving flow of solidified lava pieces, volcanic ash, and hot gases.

48
Q

Quarternary period

A

A geological epoch covering the last 2.6 million years.

49
Q

Sunspots

A

A temporary phenomenon on the sun’s surface that appear as spots darker than the surrounding areas.

50
Q

Volcanic winter

A

A reduction in global temperatures caused by volcanic ash and droplets of sulphuric acid and water obscuring the sun.

Geography (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions