Tropical Cyclones and Thunderstorms Quiz
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Questions and Answers

What are the three stages of thunderstorm formation?

  • Initial stage, Development stage, Final stage
  • Formation stage, Growth stage, Decay stage
  • Condensation stage, Precipitation stage, Dissipation stage
  • Cumulus stage, Mature stage, Dissipating stage (correct)
  • Lightning can only occur between a cloud and the ground.

    False (B)

    What causes thunder?

    The rapid expansion and explosion of air heated by a lightning strike.

    Tropical cyclones form over warm waters when there is high humidity and sea temperatures above ______ ํC.

    <p>26</p> Signup and view all the answers

    Match the following parts of a tropical cyclone with their descriptions:

    <p>Eye = The center of the storm, characterized by calm weather and clear skies. Eyewall = The ring of clouds surrounding the eye, containing the strongest winds and heaviest rain. Rainbands = Outer bands of clouds that produce strong winds and bursts of rain.</p> Signup and view all the answers

    In which hemisphere do tropical cyclones spin clockwise?

    <p>Southern Hemisphere (A)</p> Signup and view all the answers

    Tropical cyclones are known for causing heavy rain and strong winds.

    <p>True (A)</p> Signup and view all the answers

    What is the name of the rotating storm that causes heavy rain and strong winds in tropical areas?

    <p>Tropical cyclone</p> Signup and view all the answers

    What wind speed defines a typhoon or hurricane?

    <p>65 knots (118 km/h) or higher (C)</p> Signup and view all the answers

    The greenhouse effect prevents heat from escaping into space.

    <p>True (A)</p> Signup and view all the answers

    What is the role of weather forecasting in agriculture?

    <p>It helps farmers to plan for irrigation and know when to apply fertilizers or pesticides.</p> Signup and view all the answers

    The tropical storm has a wind speed reaching ______ knots.

    <p>34 - 64</p> Signup and view all the answers

    Match the weather elements with their corresponding measuring instruments:

    <p>Wind speed = Anemometer Air temperature = Thermometer Atmospheric pressure = Barometer Humidity = Hygrometer</p> Signup and view all the answers

    Which of the following symbols represents a high-pressure area on a weather map?

    <p>H (C)</p> Signup and view all the answers

    Cloud cover is not measured when creating weather forecasts.

    <p>False (B)</p> Signup and view all the answers

    What happens to global temperatures as more greenhouse gases are added to the atmosphere?

    <p>Global temperatures will increase.</p> Signup and view all the answers

    What is the biggest cause of global warming?

    <p>Carbon dioxide (CO2) (B)</p> Signup and view all the answers

    Chlorofluorocarbons (CFCs) are used primarily as a fuel source.

    <p>False (B)</p> Signup and view all the answers

    What is released by the burning of fossil fuels and contributes to ozone formation?

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

    The region known as the ______ is a result of ozone depletion.

    <p>ozone hole</p> Signup and view all the answers

    Which gas is a greenhouse gas that also contributes to ozone destruction?

    <p>Chlorofluorocarbons (CFCs) (A)</p> Signup and view all the answers

    UV radiation increases in areas with a depleted ozone layer.

    <p>True (A)</p> Signup and view all the answers

    What atoms are freed when CFCs break down in the presence of UV radiation?

    <p>Chlorine atoms</p> Signup and view all the answers

    Match the greenhouse gases with their sources:

    <p>Carbon dioxide (CO2) = Burning fossil fuels Methane (CH4) = Cattle raising Nitrous oxide (N2O) = Plant fertilizers Chlorofluorocarbons (CFCs) = Refrigerants and aerosol products</p> Signup and view all the answers

    Flashcards

    Thunderstorm

    A weather phenomenon with heavy rain, lightning, and thunder.

    Cumulus Stage

    The initial stage of thunderstorm formation with growing cumulus clouds.

    Mature Stage

    The stage of a thunderstorm characterized by heavy rain and thunderstorms.

    Dissipating Stage

    The final stage in thunderstorms when they weaken and rain decreases.

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    Lightning

    A discharge of electricity in the atmosphere producing a bright flash.

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    Tropical Cyclone

    A strong rotating storm forming over warm oceans, featuring high winds and rain.

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    Eyewall

    The ring of clouds around the eye of a tropical cyclone with the strongest winds.

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    Rainbands

    Outer cloud formations in a storm producing strong winds and rain.

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    Carbon Dioxide (CO2)

    A greenhouse gas released from various sources, including fossil fuel combustion.

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    Methane (CH4)

    A potent greenhouse gas emitted during the production of coal, oil, and natural gas, as well as by cattle.

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    Ozone (O3)

    A gas formed from pollutants reacting in sunlight, which can act as a greenhouse gas.

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    Greenhouse Gases

    Gases that trap heat in the atmosphere, contributing to the greenhouse effect and global warming.

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    Ozone Hole

    A region of depleted ozone in the atmosphere, largely caused by human-made chemicals like CFCs.

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    Chlorofluorocarbons (CFCs)

    Manmade chemicals used in refrigeration and aerosol sprays that deplete ozone in the atmosphere.

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    UV Radiation

    Ultraviolet radiation is a type of sunlight that can cause harm and is partially blocked by the ozone layer.

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    Sources of Greenhouse Gases

    Includes vehicles, factories, and agricultural practices that release carbon dioxide and methane.

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    Typhoon/Hurricane

    A tropical storm with wind speed of 65 knots (118 km/h) or higher.

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    Tropical Storm

    A storm with wind speeds between 34-64 knots (63-117 km/h).

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    Tropical Depression

    A system with wind speeds of 34 knots (63 km/h) or less.

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    Weather Map

    A visual representation of atmospheric conditions at a specific time.

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    Isobars

    Lines on a map connecting points of equal atmospheric pressure.

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    Greenhouse Effect

    The trapping of heat in the atmosphere by greenhouse gases.

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    Natural Disaster Warning

    Alerts about potential natural disasters based on weather forecasts.

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    Weather Forecasting

    Using weather elements to predict future conditions.

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    Study Notes

    Mastering Science 1B

    • This is a secondary 1 science learning area with three learning units.
    • Unit 6 is Atmosphere (Part 2).

    Atmosphere (Part 2)

    • This section covers weather variability, weather forecasting, and changes in global climate.

    Weather Variability

    • Includes thunderstorms and tropical cyclones.

    Thunderstorms

    • A weather phenomenon with heavy rain, lightning, thunder, sometimes strong winds, and hail.
    • Forms when moisture and rising unstable air are present.
    • Consists of three stages: cumulus, mature, and dissipating.
    • During a thunderstorm, positive and negative charges build up in clouds, creating lightning.
    • Lightning occurs within a cloud, between two clouds, or between a cloud and the ground.
    • Lightning heats the air, causing it to expand explosively, producing thunder.

    Tropical Cyclones

    • Strong rotating storms in tropical areas.

    • Form over warm waters with high humidity and sea temperatures above 26°C.

    • Stages in their formation include warm moist air rising, cool air replacing warm air, and rotation creating large clouds.

    • The eye is the calm center, while the eyewall is the ring of clouds with the strongest winds and heaviest rain.

    • Rainbands are outermost clouds producing strong winds and rain bursts.

    • Tropical cyclones spin counterclockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere.

    • Classified as typhoons/hurricanes, tropical storms, or tropical depressions, based on wind speed.

    • Typhoons/hurricanes have wind speeds of 65 knots (118 km/h) or higher.

    • Tropical storms have wind speeds between 34-64 knots (63-117 km/h).

    • Tropical depressions have wind speeds of 34 knots (63 km/h) or less.

    • Tropical cyclones are named based on their formation location (e.g., hurricanes in the North Atlantic, typhoons in the western Pacific).

    Weather Forecasting

    • Uses gathered weather data.
    • Weather maps show atmospheric conditions (wind speed, wind direction, cloud cover, atmospheric pressure, air temperature).
    • Forecasting includes descriptions of weather conditions like air temperature, rain, sky conditions, visibility, and wind.

    Changes in Global Climate

    • Includes the Greenhouse Effect, the Ozone Hole, and the Effects of Global Warming.

    The Greenhouse Effect

    • Greenhouse gases trap heat in the atmosphere, preventing it from escaping into space.
    • This trapped heat keeps the Earth warm, leading to an increase in global temperatures if more greenhouse gases are present.

    Sources of Greenhouse Gases

    • Burning fossil fuels, biomass, and cement production release carbon dioxide.
    • Wetlands, rice cultivation, cattle raising, and natural gas use release methane.
    • Chemical factories, power plants, and fertilizers release nitrous oxide.
    • Refrigerants and aerosols (CFCs) also contribute.

    The Ozone Hole

    • Some greenhouse gases destroy ozone in the atmosphere, creating a depleted ozone region (ozone hole).
    • UV radiation breaks down CFCs, releasing chlorine atoms.
    • Chlorine atoms break down ozone, reducing the layer's ability to block UV-B radiation.

    Effects of Global Warming

    • More common heavy precipitation and storms.
    • More common droughts.
    • Rising sea levels due to melting ice sheets.
    • Spread of diseases due to warmer temperatures.
    • Destruction of habitats endangering plants and animals.

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    Description

    Test your knowledge on the formation stages of thunderstorms and the characteristics of tropical cyclones. This quiz covers essential concepts related to storms, including lightning, thunder, and cyclone behavior in different hemispheres. Perfect for anyone studying meteorology or atmospheric sciences!

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