Disasters: Nature and Man

What is an earthquake?

• A natural disaster caused by volcanic eruptions.

• An earthquake is a sudden shaking of the ground caused by the movement of tectonic plates.

• A phenomenon that occurs only underwater.

• A type of weather event characterized by strong winds.

What causes floods?

• Tsunamis and landslides

• Floods are caused by excessive rainfall, snowmelt, storm surges, and human activities.

• Earthquakes and volcanic eruptions

• Droughts and heatwaves

Can earthquakes happen anywhere?

• Yes, earthquakes can happen anywhere.

• Earthquakes cannot happen in urban areas.

• Earthquakes are limited to tectonic plate boundaries.

• Earthquakes only occur in specific regions.

What should you do during an earthquake?

• Drop, cover, and hold on

• Lie flat on your back

• Run outside immediately

• Stand in a doorway

What is a nuclear accident?

• A nuclear accident is a routine maintenance procedure in nuclear plants.

• A nuclear accident is a minor incident with no radiation release.

• A nuclear accident is an unintended event involving the release of radiation or radioactive materials.

• A nuclear accident is a planned event to test safety protocols.

How can floods be prevented?

• Building more roads

• Increasing water usage in agriculture

• Floods can be prevented by improving drainage, constructing levees, restoring wetlands, and implementing floodplain zoning.

• Planting trees in urban areas

What is the Richter scale used for?

• To assess the depth of ocean trenches.

• The Richter scale is used to measure the magnitude of earthquakes.

• To evaluate the strength of building materials.

• To measure the temperature of volcanoes.

What happens to buildings during a strong earthquake?

• Buildings can sustain damage such as cracks, collapses, and structural failure during a strong earthquake.

• Buildings become more stable and stronger during a strong earthquake.

• Buildings are automatically reinforced by the earthquake's energy.

• Buildings float above the ground during a strong earthquake.

What are the effects of a nuclear accident?

• The effects of a nuclear accident include radiation exposure, environmental contamination, health risks, evacuation, psychological trauma, and economic disruption.

• Increased agricultural productivity

• Enhanced public health services

• Improved air quality

Why is it important to have a disaster plan?

• Having a disaster plan is a waste of resources.

• Disaster plans are only useful after a disaster has occurred.

• Disaster plans are only necessary for large organizations.

• It is important to have a disaster plan to ensure safety, minimize chaos, and facilitate effective response and recovery during emergencies.