Volcanoes and Earthquakes

How are earthquakes measured?

• Earthquakes are measured using barometers.
• Earthquakes are measured in kilometers.
• Earthquakes are measured using seismographs and reported on the Richter rscale.

• Seismographs are used to predict weather patterns.

How are volcanoes formed?

• Volcanoes are formed by the eruption of magma from the Earth's interior.
• Volcanoes are formed from the build up of sediment over time.

• Volcanoes are created by the movement of tectonic plates away from each other.
• Volcanoes are formed by the cooling of ocean water.

How are earthquakes caused?

• Earthquakes are caused by heavy rainfall.
• Earthquakes are caused by volcanic eruptions.
• Earthquakes are caused by human activities like mining.
• Earthquakes are caused by the movement of tectonic plates.

What is a volcano?

• A volcano is a geological feature that only erupts once every century.
• A volcano is an opening in the Earth's crust that allows molten rock, ash, and gases to escape.
• A volcano is a large crater formed by meteor impacts.
• A volcano is a type of mountain that only forms underwater.

What is the main difference between a volcano and an earthquake?

• Earthquakes release lava, while volcanoes do not.

• A volcano only occurs underwater, while an earthquake only occurs on land.

• Volcanoes are caused by weather changes, while earthquakes are caused by animal movement.

• A volcano involves the eruption of magma, while an earthquake is caused by the movement of tectonic plates.

What is the Ring of Fire known for?

• It is an area with frequent volcanic eruptions and earthquakes.

• It is a region with the hottest temperatures on Earth.

• It is a place where only earthquakes occur.

• It is a mountain range formed by glaciers.

What is magma called when it reaches the Earth's surface?

• Lava

• Ash

• Sediment

• Crust

Which of the following is a common effect of a major earthquake?

• Formation of glaciers

• Flooding from heavy rain

• Ground shaking and possible structural damage

• Increase in volcanic eruptions worldwide

What comes out of a volcano when it erupts?

• Lava, ash, and gases
• Water and steam
• Rock formations
• Earthquakes

Where are most volcanoes and earthquakes found?

• Along tectonic plate boundaries.

• In areas with no tectonic activity
• Under the ocean floor far from land
• In the middle of continents