QUIZ 3.2 - Effects of Volcanic Eruptions

The following are benefits from volcanic activities except _______

• Ash ejected by the volcano acts as a good fertilizer for soils.

• Volcanoes attract many tourists, who enjoy the dramatic scenery that they produce.

• Rising magma brings valuable minerals to the surface, creating mining opportunities.

• Habitats and landscapes are damaged by lava flows.

The process of producing energy by utilizing heat trapped inside the earth surface is called _____

• Hydrothermal energy

• Solar energy

• Geothermal energy

• Wave energy

Geothermal energy is a form of alternative energy resource on Earth. Alternative energy resource is _____________

• The energy that comes from harnessing the movement of the air

• The energy that comes from the Sun

• A source of renewable energy, such as solar, wind, or geothermal energy

• Fuel from plant material

Volcanic eruptions can cause many different hazards and these hazards can happen at the same time. Which of the following does not contribute to hazards brought about by volcanic eruptions?

• A volcanic tsunami may start from landslides flowing into the sea around an island volcano.

• Lahar deposits can bury large areas under volcanic debris several meters thick

• Gases emitted by volcanoes can be harmful to health

• Heated fluids trapped in rock formations below the Earth’s surface can be sources of renewable energy

Geothermal resources include the following except _________

• volcanoes

• hot dry rocks

• hot springs

• the Sun

What is the advantage of geothermal energy from the options below?

• Geothermal energy makes no pollution.

• Geothermal energy works everywhere on Earth.

• Geothermal energy relies on the power of the sun.

• Geothermal energy is non-renewable.

What is the initiating (first) event in harnessing geothermal energy?

• Once the heat is used, the water is now cold and is pumped back into the subsurface through the injection well

• Hot water from far below the surface is pumped up to the production well and is sent to the power plant

• Inside the plant, the heat from the water is used to spin a turbine, creating electricity.

• Water will now heat up again over time and go through the cycle again.

What is the second event in harnessing geothermal energy?

• Once the heat is used, the water is now cold and is pumped back into the subsurface through the injection well

• Hot water from far below the surface is pumped up to the production well and is sent to the power plant

• Inside the plant, the heat from the water is used to spin a turbine, creating electricity.

• Water will now heat up again over time and go through the cycle again.

What is the third event in harnessing geothermal energy?

• Once the heat is used, the water is now cold and is pumped back into the subsurface through the injection well

• Hot water from far below the surface is pumped up to the production well and is sent to the power plant

• Inside the plant, the heat from the water is used to spin a turbine, creating electricity.

• Water will now heat up again over time and go through the cycle again.

What is the final event in harnessing geothermal energy?

• Once the heat is used, the water is now cold and is pumped back into the subsurface through the injection well

• Hot water from far below the surface is pumped up to the production well and is sent to the power plant

• Inside the plant, the heat from the water is used to spin a turbine, creating electricity.

• Water will now heat up again over time and go through the cycle again.