Natural Disasters: Earthquakes and Volcanoes

What is the definition of an earthquake?

• A) A sudden shaking of the ground caused by the release of energy in the Earth's crust.

• B) A rupture in the Earth's crust that allows hot magma to escape.

• C) A fast-moving hot gas and volcanic debris flow.

What causes earthquakes?

• Movement of tectonic plates along faults or volcanic eruptions.

• Pressure buildup from magma in the Earth's mantle.

• Fast-moving hot gas and volcanic debris.

What is the definition of a volcano?

• A) A sudden shaking of the ground caused by the release of energy in the Earth's crust.

• B) A rupture in the Earth's crust that allows hot magma, gases, and ash to escape.

• C) A fast-moving hot gas and volcanic debris flow.

What causes volcanoes?

• Movement of tectonic plates along faults or volcanic eruptions.

• Tectonic plate movement and pressure buildup from magma in the Earth's mantle.

• Fast-moving hot gas and volcanic debris.

Fill in the blank: The effects of volcanoes include lava flows, ash clouds, and _________.

• Pyroclastic flows.

• Rain showers.

• Snow storms.

• Hurricanes.

A tornado is defined as:

• A violent rotating column of air extending from a thunderstorm to the ground.

• A type of hurricane that forms over land.

• A large snowstorm with high winds and low visibility.

• A sudden and severe thunderstorm with heavy rain.

Tornadoes are caused by:

• High pressure systems

• Cold fronts

• Warm ocean waters

• The meeting of warm, moist air with cold, dry air

Which of the following is an effect of tornadoes.

• Destruction of buildings and infrastructure

• Increase in population

• Improvement in weather conditions

• Growth of vegetation

What are some prevention and preparedness strategies for tornadoes?

• Building storm shelters and having emergency kits

• Ignoring weather warnings

• Leaving windows open during a tornado

• Standing near large windows to watch the storm

A hurricane is defined as:

• a tropical cyclone with winds exceeding 74 mph

• a type of earthquake

• a large snowstorm

• a type of volcanic eruption