# NATURAL DISASTER (NATURAL HAZARDS)

Question 1

Categorize the natural hazards

Answer 1

6 big categories:
1. Geological disasters - earth-related (volcanic eruption, earthquake,
avalanche, landslide)
2. Hydrological disasters - water-related (flooding, tsunami)
3. Meteorological disasters - atmosphere related (tornado, cyclone, blizzard,
drought)
4. Wildfires - fire-related (wildfire)
5. Health disasters - disease-related (AIDS, malaria, tuberculosis,
measles, diarrheal diseases, respiratory illness)
6. Space disasters - space-related (solar flare)

Question 2

# GEOLOGICAL DISASTER
Avalanches

Answer 2

a mass of snow, mixed with ice and debris travels which down mountain sides, destroying all in its
path
be triggered by different factors, ranging from temperature, overloading to vibration

Question 3

vegetation

Answer 3

plants

Question 4

levee

Answer 4

an embarkment built to prevent the overflow of a river

Question 5

topography

Answer 5

physical features of an area

Question 6

impervious (surface)

Answer 6

not allowing fluid to pass through

Question 7

Landslides

Answer 7

be similar to avalanches, except that it is dirt and rock from rock mountain falling on the slope
* causes : a removal of vegetation, earthquakes, or
some other human-induced factors

Question 8

Earthquake

Answer 8

the shaking of the surface

Question 9

Volcanic eruptions

Answer 9

when lava and gas are discharged from a volcanic vent

Question 10

# HYDROLOGICAL DISASTER
Flooding

Answer 10

an overflowing of water onto normally dry land.
causes: flash floods,
storm surge, and dam and levee failures

Question 11

flash floods

Answer 11

*be deadly due to the rapid rise in water levels and the high flow-velocities of the
water
causes: rainfall intensity, duration, surface condition and topography
Urban areas are more
susceptible to flash floods due to the lack of
natural drainage systems and the high amounts
of impervious surfaces

Question 12

Tsunamis

Answer 12

a series of huge waves that strike a coast
causes: massive amounts of water are displaced
due to an undersea disturbance

Question 13

# METEOROLOGICAL DISASTER
Blizzard

Answer 13

severe snow storms with high winds and low visibility

Question 14

Cyclone

Answer 14

big storms mostly coming from the ocean

Question 15

livestock

Answer 15

farm animals

Question 16

Drought

Answer 16

period of unexpected rainfall deficit => a shortage of water
Impact:lack of adequate
drinking water, loss of vegetation, loss of farmland, loss of livestock and loss of life due to famine or dehydration.
be affected by deforestation as vegetation help contain water in an area

Question 17

Tornadoes

Answer 17

is a narrow, violently rotating column of air that extends from a thunderstorm to the ground

Question 18

heat waves

Answer 18

a period of excessively hot weather, which may be accompanied by high humidity

Question 19

# WILDFIRE
wildfires

Answer 19

an uncontrolled fire fuelled by natural vegetation (in
the forest)
causes: high temperatures,
drought conditions, a trigger which can be natural such as lightning or human influenced such as arson

Question 20

HEALTH DISASTER

Answer 20

1. AIDS (characterized by the failure of the immune system)
2. Malaria - blood-related - caused by mosquitos.
3. Tuberculosis - lung-related
4. Measles - skin-related
5. Diarrheal Diseases - diarrhea-related
6. Respiratory Illness - breathing-related

Question 21

# SPACE DISASTER
Solar flare

Answer 21

the sun is super active (periodically) => releasing solar radiation => destroy electrical equipment