Types of Volcanoes and Their Effects

What type of volcano is characterized by gentle slopes and fluid lava flows?

• Composite volcano

• Cinder cone volcano

• Dome volcano

• Shield volcano

Name one example of a shield volcano.

• Mauna Loa in Hawaii is an example of a shield volcano.

• Mount Kilimanjaro in Tanzania

• Mount St. Helens in Washington

• Mount Everest in Nepal

What type of volcano is also known as stratovolcano?

• Stratovolcano

• Cinder cone volcano

• Super volcano

• Shield volcano

What is the difference between a shield and a composite volcano

• The main difference is that shield volcanoes are built almost entirely of fluid lava flows, while composite volcanoes are built up by many layers of hardened lava, tephra, pumice, and volcanic ash.
• The main difference is that shield volcanoes are found on land, while composite volcanoes are found underwater
• Shield volcanoes are smaller in size compared to composite volcanoes
• The difference is that shield volcanoes are formed by explosive eruptions, while composite volcanoes are formed by non-explosive eruptions

What are the main components of composite volcanoes?

• A deep underground reservoir of magma

• A single layer of molten lava

• Layers of sand, water, and sediment

• The main components of composite volcanoes are layers of ash, lava, and volcanic rocks, along with a central vent and a summit crater.

What type of volcano is formed from the accumulation of tephra around the vent?

• Lava dome volcano

• Cinder cone volcano

• Shield volcano

• Stratovolcano

What is the primary cause of volcanic eruptions?

• Alien activity

• Global warming

• Movement of tectonic plates

• Underground nuclear testing

What are the two main types of lava flows?

• igneous and sedimentary

• pahoehoe and aa

• rhyolite and obsidian

• basalt and andesite

What is a pyroclastic flow and how does it form?

• A pyroclastic flow is a fast-moving current of hot gas and volcanic matter that flows down the side of a volcano during an eruption. It forms when the pressure of the volcanic gases and rock fragments is released, causing a rapid and destructive flow of material.

• A pyroclastic flow is a slow-moving current of cold gas and volcanic matter that flows up the side of a volcano during an eruption. It forms when the pressure of the volcanic gases and rock fragments is released, causing a slow and non-destructive flow of material.

• A pyroclastic flow is a type of cloud that forms above a volcano during an eruption. It forms when the pressure of the volcanic gases and rock fragments is released, causing a cloud of material to form and disperse in the atmosphere.

• A pyroclastic flow is a type of earthquake that occurs during a volcanic eruption. It forms when the pressure of the volcanic gases and rock fragments is released, causing seismic activity in the surrounding area.

What are some of the effects of volcanic eruptions on the environment?

• Air pollution, acid rain, destruction of vegetation and wildlife, climate change, and ozone layer effects

• Promotion of plant growth

• Decrease in global temperature

• Increase in biodiversity