Natural and Ecological Hazards Flashcards

1
Q

What is an ecological hazard?

A

An ecological hazard is a potential threat to the environment that can cause harm to ecosystems and human health.

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2
Q

True or False: Natural hazards are always predictable.

A

False

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3
Q

What is the definition of a natural hazard?

A

A natural hazard is a naturally occurring event that has the potential to cause damage, destruction, or loss.

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4
Q

What are contour lines used for in geography?

A

Contour lines are used to represent elevation and terrain features on a map.

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5
Q

Multiple Choice: Which of the following is NOT a type of natural hazard? A) Earthquake B) Flood C) Pollution D) Hurricane

A

C) Pollution

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6
Q

True or False: Contour lines that are close together indicate a gentle slope.

A

False

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7
Q

What is the main purpose of risk assessment in ecological hazards?

A

The main purpose is to evaluate the potential impacts and likelihood of hazards affecting people and the environment.

asses the risk in countries that can impact people or the envrionment

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8
Q

Multiple Choice: Which of the following describes a primary ecological hazard? A) Wildfire B) Urbanization C) Deforestation D) All of the above

A

A) Wildfire

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9
Q

What does it mean if an area is considered ‘highly vulnerable’?

A

It means that the area is at a greater risk of suffering significant damage from hazards due to various factors.

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10
Q

What does a steep contour line gradient indicate?

A

It indicates a steep slope.

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11
Q

Multiple Choice: Which of the following is a secondary ecological hazard? A) Landslide B) Tsunami C) Drought D) Flood

A

A) Landslide

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12
Q

True or False: All natural hazards can be mitigated completely.

A

False

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13
Q

What is the relationship between hazard and risk?

A

Risk is the probability of a hazard causing harm, while hazard is the potential event itself.

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14
Q

Fill in the blank: __________ is the process of identifying and analyzing the hazards that a community may face.

A

Hazard assessment

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15
Q

What do contour lines represent on a topographic map?

A

Elevation levels and the shape of the terrain.

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16
Q

Multiple Choice: Which of the following factors does NOT contribute to vulnerability? A) Geographic location B) Community preparedness C) Climate change D) Population density

A

C) Climate change

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17
Q

What is Spatial technology

A

any software or hardware that interacts with real-world locations. GPS, GIS and satellite images are most commonly used to visualise, manipulate , analyse display and record spatial data.

18
Q

Types of spatial technology

A

remote sensing; allows data to be collected
GPS; provides information about locations on earth.
Global Information services; allow users to collect store and analyse data based on earth
Drones; help gather geospatial data.

19
Q

What are the advantages of spatial tech

A
  • recording and storing info(public or private)
  • identifying and investigating spatial patterns.
  • presenting and communicating information and findings.
20
Q

Real life example of spatial technology.

A

Google earth which helps people to understand patterns, relationships and geographic content,.

22
Q

What are the types of spatial technologies?

A

remote sensing; allows data to be collected
GPS; provide info about locations of earth
GIS; allow users to collect, store and analyse data linked to earth.
Drones; help gather geospatial data

23
Q

What is a real life example of spatial technology.

A

google earth can be used for people to understand patterns, relationships and geographic context.

24
Q

What are the advantages of spatial tech?

A

recording and storing info (public of private)
identifying and investigating spatial patterns
presenting and communicating info and findings.

25
Define vulnerabilty
Vulnerability refers to the susceptibility to harm/damage/change from a hazard event.
26
What are the factors which influence vulnerability?
economy, governments, geographical, population characteristics and education
27
Explain economy in reference to vulnerability.
the wealth funding of emergency services, quality of infrastructure and number of hospitals in a country/region impact the vulnerability. Economy is also closely linked to governments.
28
Define Spatial distirbution
The term refers to how features are arranged on the earth's surface. (described as clustered, uniform(equally spaced), and random)
29
Define temporal distribution
the distribution of geographical phenomena over a period of time.
30
Define frequency
How often teh hazard occurs in a particular region/country.
31
Define scale of spatial impact
the extent of an area impacted by a hazard event.
32
Define Magnitude
How strong a hazard is and their importance, they can be measured through the richter scale of volcano explosivity index (VEI).
33
Define hazard Geography
The study of natural and ecological hazards.
34
What is the difference between a hazard and a hazard event
A Hazard refers to the type eg; a bushfire, while a hazard event is the specific occurrence; 2023, Parkerville Bushfires.
35
Types of natural hazards
atmospheric, hydrological and geothermic
36
Types of ecological hazards
biological and chemical.
37
Geomorphic
driven by geological processes eg plate tectonics, which create movement on the earth's surface causing earthquakes and tsunamis.
38
Atmoshperic
Caused in the atmosphere, and commonly invlove weather for example a storm, heatwave or bushfire.
39
Hydrological
Derived from the water cycle, yet often tied with atmospheric hazards. An example is droughts, rain is deficient but weather, precipitation and wind also affect it.
40
Biological
driven/associated with biological life, can include COVID or other disease, airborne or waterborne.
41
Chemical
Exposure to chemical such as nuclear waste, which cause harm to people, communities and the environment.