2.1-2.3 Yellowstone Quiz

How do scientist know that Yellowstone is a volcano?

• The presence of large mountains

• The discovery of volcanic rocks and geothermal activity

• The presence of a large lake

• The absence of any vegetation

What is a supervolcano?

• A volcano that erupts frequently

• A volcano that has a very large and explosive eruption

• A volcano that is located underwater

• A volcano that is inactive

What is a caldera?

• A type of lava flow

• A large volcanic Crater formed by a major eruption leading to the collapse of the mouth of the volcano

• A small volcanic vent

• A type of volcanic rock

How do you think hot springs are formed in Yellowstone National Park?

• By the melting of glaciers

• By the heating of groundwater by geothermal activity

• By the accumulation of rainwater

• By the flow of river water

Yellowstone lies over a hot spot. What drives the hot spot?

• The movement of tectonic plates

• Uneven heating in the mantle creating mantle plumes

• The rotation of the Earth

• The gravitational pull of the moon

What is the significance of the Yellowstone Caldera?

• It is the largest lake in the world

• It is a major tourist attraction

• It indicates the presence of a supervolcano

• It is the highest peak in North America

What is the main difference between a hot spring and a geyser?

• Hot springs are colder than geysers

• Geysers erupt periodically, while hot springs do not

• Hot springs are found only in deserts

• Geyser are found only in oceans

What is the main focus of the old research conducted 1930 in Yellowstone National Park?

• The wildlife in Yellowstone National Park

• The chemical process in the development of the hot-spring areas

• The history of Yellowstone National Park

• The tourism impact on Yellowstone National Park

What is the primary reason for the extreme acidity in some of Yellowstones thermal features?

• The presence of wildlife

• Chemical processes in the hot springs

• Human activity

• Climate change

What did the 1930's research conclude was the cause of the sulfuric acid in the thermal features in the Norris Thermal Basin at Yellowstone?

• The presence of sulfolobus bacteria

• An oxidation reaction between very hot water and sulfur-containing rocks

• The presence of volcanic gases

• The decomposition of organic matter