Cold Weather and Geological Hazards Safety
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Which of the following factors does NOT influence rainfall-induced landslides?

  • Temperature (correct)
  • Tectonic factors
  • Slope
  • Soil type
  • Satellite mapping is ineffective in assessing landslide occurrences.

    False

    What is a common consequence of heavy rainfall on steep slopes?

    Landslides

    When a land falls due to failure, it is referred to as a _____

    <p>landslide</p> Signup and view all the answers

    What can magnify the impact of landslides in susceptible areas?

    <p>Heavy rainfall</p> Signup and view all the answers

    Match the term with its correct description:

    <p>Landslide = Movement of earth material down a slope Failure = The point of collapse in a landslide Rainfall Predictor = Forecast of rainfall patterns over time Steep Slope = A primary trigger for landslides</p> Signup and view all the answers

    Which of the following modes of failure refers to the downward movement of soil and rock under the influence of gravity?

    <p>Falling</p> Signup and view all the answers

    Monitoring systems are not necessary in areas affected by potential landslides.

    <p>False</p> Signup and view all the answers

    What is primarily responsible for the formation of sinkholes?

    <p>Carbonic acids</p> Signup and view all the answers

    What role does human mismanagement play in landslides?

    <p>It can contribute to weakening slope materials and increase susceptibility.</p> Signup and view all the answers

    Name one key factor that influences the mode of failure of landslides.

    <p>Soil composition</p> Signup and view all the answers

    Countries that gather data on rainfall patterns and land composition can potentially avoid _____ of rainfall-induced landslides.

    <p>effects</p> Signup and view all the answers

    Typhoons can only form over temperatures below 27°C.

    <p>False</p> Signup and view all the answers

    Avoid construction near steep slopes, mountain edges, drainage paths, or naturally prone to __________ areas.

    <p>erosion</p> Signup and view all the answers

    Name one of the two theories that explain the formation of typhoons.

    <p>Convective Theory or Frontal Theory</p> Signup and view all the answers

    What is one action recommended for communities before a rainfall-induced landslide occurs?

    <p>Assess the area using hazard maps</p> Signup and view all the answers

    To prevent accidents, it is important to __________ the sinkhole area.

    <p>mark</p> Signup and view all the answers

    Match the following actions with the corresponding measures to take if a sinkhole appears:

    <p>Move away from the area = 1 Communicate with experts = 2 Monitor for growth = 3 Check for other damages = 4</p> Signup and view all the answers

    Match the following services or actions with their respective purposes related to landslide mitigation:

    <p>Hazard maps = Provide foresight on potential risks Emergency response plan = Prepare individuals for safe evacuation Monitoring systems = Track slope movement and rainfall LGU updates = Inform communities about current conditions</p> Signup and view all the answers

    During a landslide, it is advised to stay aware of sounds indicating moving debris.

    <p>True</p> Signup and view all the answers

    What temperature must ocean water exceed for typhoon formation?

    <p>27°C</p> Signup and view all the answers

    Earth's rotation has no effect on the formation of a cyclonic circulation.

    <p>False</p> Signup and view all the answers

    What should people do if they are driving during a landslide?

    <p>Be extra alert and careful with moving materials</p> Signup and view all the answers

    What should you not do with a sinkhole?

    <p>Drop anything into it</p> Signup and view all the answers

    What is the primary cause of most sinkholes?

    <p>Dissolution of rocks</p> Signup and view all the answers

    Flooding is a factor that contributes to the occurrence of sinkholes.

    <p>True</p> Signup and view all the answers

    What are the two processes that create sinkholes?

    <p>Dissolution and suffusion</p> Signup and view all the answers

    Once the foundation of the ground is weakened, any well-constructed structure can __________ and incur damages.

    <p>subside</p> Signup and view all the answers

    Match the following types of sinkholes with their descriptions:

    <p>Cover-collapse sinkholes = Created abruptly when the land above fails Gradual cover-subsidence sinkholes = Develop slowly over time as sediments erode into cavities Dissolution sinkholes = Formed when rock is dissolved by water and acids Suffusion sinkholes = Result when cavities underneath are overburdened by sediments</p> Signup and view all the answers

    What should you do if you find injured individuals after a landslide?

    <p>Forward them to first aiders and rescuers</p> Signup and view all the answers

    Suffusion involves the accumulation of sediments above already existing cavities.

    <p>True</p> Signup and view all the answers

    Name one man-made activity that can cause sinkholes.

    <p>Mining</p> Signup and view all the answers

    What is typically indicated by the detection of LPA?

    <p>A typhoon</p> Signup and view all the answers

    The immature stage of a typhoon is characterized by intensification reaching maximum wind intensity.

    <p>False</p> Signup and view all the answers

    Name one of the three important motions for the formation of cyclones.

    <p>Circulation</p> Signup and view all the answers

    A severe heatwave is defined as when the daily maximum temperature exceeds the average maximum temp by _____°C.

    <p>5</p> Signup and view all the answers

    Which of the following is NOT a negative effect on humans caused by heat waves?

    <p>Frostbite</p> Signup and view all the answers

    Match the following terms with their definitions related to heat conditions:

    <p>Heat Cramps = Muscular pains due to heavy exertion Heat Exhaustion = Loss of body fluids leading to fatigue Heat Stroke = A life-threatening condition from extreme heat Heat Wave = A prolonged period of excessive heat</p> Signup and view all the answers

    What is the typical duration of the mature stage of a tropical cyclone?

    <p>Up to one week</p> Signup and view all the answers

    What does the decaying stage of a typhoon indicate?

    <p>Rise in surface pressure</p> Signup and view all the answers

    What is one of the main consequences of the body's temperature control system failing?

    <p>High body temperature that can damage the brain</p> Signup and view all the answers

    A cold wave involves a gradual increase in temperature over a 24-hour period.

    <p>False</p> Signup and view all the answers

    What should you do before a heatwave to increase your safety?

    <p>Listen to local weather forecasts and check on vulnerable neighbors.</p> Signup and view all the answers

    One of the solutions to deal with a cold wave is to dress __________.

    <p>appropriately</p> Signup and view all the answers

    Match the following temperature deviations with their corresponding wave type:

    <p>-5°C from normal = Severe cold wave -3°C to -4°C from normal = Cold wave Rapid drop in temperature = Cold wave High body temperature risk = Heatwave</p> Signup and view all the answers

    Which action is NOT recommended during a heatwave?

    <p>Leave children in closed vehicles</p> Signup and view all the answers

    During extreme cold, the demand for electrical power decreases significantly.

    <p>False</p> Signup and view all the answers

    What type of household problems can arise from a cold wave?

    <p>Frozen water pipelines and mains.</p> Signup and view all the answers

    Study Notes

    Cold Weather Safety

    • Keep emergency kit (shovels, firewood, clothing) ready.
    • Listen to local radio for weather updates.
    • Minimize travel.
    • Change wet clothing frequently to avoid heat loss.
    • Use proper ventilation with kerosene heaters or coal ovens.
    • Seek shelter if power or heat is lost.
    • Watch for frostbite symptoms (numbness, pale skin).
    • Wear warm, layered clothing.

    Geological Hazards

    • Geological hazards cause property damage or loss of life.
    • Rainfall-induced landslides depend on rainfall, slope, and soil conditions.
    • Satellite mapping helps monitor landslide occurrences.
    • Landslides often occur in mountainous regions after heavy rainfall.
    • Landslide factors include steep slopes, weakened slope materials, rock weakening, and overloading.
    • Landslides can be categorized by failure mode: falling, toppling, sliding, spreading, and flowing.
    • The frequency of rainfall and typhoons influences landslide occurrence.

    Mitigation Strategies

    • Create hazard maps to identify potential risks.
    • Construct buildings far from landslide-prone areas (steep slopes, mountain ranges).
    • Implement early warning systems (EWS) to notify communities.
    • Develop a personal emergency response plan beforehand.
    • Prepare a survival kit with essential items and emergency supplies.
    • Regularly assess building structures and drainage systems.
    • Monitor and communicate with experts in case of damage or landslide occurrence.

    Sinkholes

    • Land subsidence due to processes underneath.
    • Sinkholes form when surface rock is dissolved by water/carbon dioxide.
    • Three types of sinkholes are common: dissolution, suffusion, and cover collapse.
    • Increased rainfall leads to increased risk of sinkhole formation.
    • Pre-existing cavities under ground can be compromised by sediments.
    • Take steps to avoid sinkholes.
    • Move away from the area if a sinkhole is present.
    • Remain alert for signs of evolving damage.
    • Avoid dropping items into the sinkhole as contaminants can spread.

    Typhoons

    • Typically originate near the equator due to warm air and trade winds.
    • Typhoon formation requires warm ocean water (>27°C).
    • Two key theories on formation: convective and frontal theory.
    • Typhoon life cycle stages: formative, immature, mature, and decaying.
    • Mature stage means sustained high winds and low pressure.
    • When decaying, the wind and pressure decrease.
    • Important motions: circulation, convergence, and divergence.

    Heat Waves

    • Excessive heat for an extended period.
    • Can cause damage or death due to hyperthermia, crop failure, and power outages.
    • Criteria: Daily max temperature 5°C (9°F) above average.
    • Effects on humans: skin cancer, heat stroke, dehydration, and sunburn.
    • Prevention: Stay indoors, drink plenty of water, and wear protective clothing.

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    Geological Hazards PDF

    Description

    This quiz covers essential safety tips for cold weather and the impact of geological hazards like landslides. It highlights the importance of emergency preparedness, clothing choices, and monitoring environmental conditions. Understand the causes, effects, and mitigation strategies for landslides and how to stay safe during adverse weather events.

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