earth science apr 24 Flashcards
(70 cards)
What are the primary gases released during a volcanic eruption?
Water vapor, carbon dioxide, sulfur dioxide, and ash.
True or False: Volcanic eruptions can lead to short-term cooling of the Earth’s climate.
True.
Fill in the blank: Volcanic eruptions can inject _______ into the stratosphere, affecting climate patterns.
aerosols.
Which volcanic eruption in 1991 had a significant impact on global temperatures?
Mount Pinatubo.
What is the term for the cooling effect caused by volcanic ash and sulfur dioxide in the atmosphere?
Volcanic winter.
How can volcanic eruptions affect precipitation patterns?
They can lead to changes in rainfall distribution and intensity.
What phenomenon can result from the increase in aerosols in the atmosphere after a volcanic eruption?
Global dimming.
True or False: Volcanic eruptions have no long-term effects on climate.
False.
Short Answer: Name one way volcanic eruptions can affect agriculture.
By altering temperature and precipitation patterns.
Which gas released by volcanoes contributes to the greenhouse effect?
Carbon dioxide.
Fill in the blank: The _______ effect refers to the warming that can occur after a volcanic eruption due to greenhouse gases.
greenhouse.
What is the impact of volcanic ash on sunlight?
It can block sunlight, leading to cooling.
True or False: Volcanic eruptions can lead to acid rain.
True.
Multiple Choice: What is a common impact of volcanic eruptions on local weather?
Changes in temperature and precipitation.
What is the role of sulfur dioxide in climate change following a volcanic eruption?
It can form sulfate aerosols that reflect sunlight.
How long can the climatic effects of a major volcanic eruption last?
From a few months to several years.
Fill in the blank: Volcanic eruptions can increase the amount of _______ in the atmosphere.
aerosols.
Short Answer: What can be a consequence of prolonged volcanic activity on climate?
Persistent cooling trends.
True or False: All volcanic eruptions cause significant climate change.
False.
What is the main way that volcanic eruptions influence global temperatures?
By injecting large quantities of ash and gases into the stratosphere.
Which type of volcanic eruption has the most significant impact on climate?
Explosive eruptions.
Fill in the blank: The _______ of a volcanic eruption can determine its climatic impact.
magnitude.
Multiple Choice: Which of the following does NOT result from a volcanic eruption?
Increased ozone levels.
Short Answer: What is one method scientists use to study the effects of past volcanic eruptions on climate?
Analyzing ice cores.