Discuss the various ways in which volcanic ash and gases interact with the environment and humans during a volcanic eruption
What will be an ideal response?
Answer: Volcanic eruptions eject large volumes of debris and gases into the atmosphere through an eruption column. The smaller, volcanic ash particles reflect sunlight back into space thus lowering the mean temperature of the atmosphere. Aerosols will also have the same impact on mean atmospheric temperatures. Volcanic ash can also clog airplane engines, impairing travel. Volcanic gases such as sulfur dioxide can react with moisture in human lungs to produce sulfuric acid, which is a deadly toxin.
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People who have been forced to leave their homes because of degraded soil and water are called _____________ refugees.
Fill in the blank(s) with the appropriate word(s).
An oil shortage in 1973 was mainly the result of ________
A) increased reliance on domestic oil production and the law of supply and demand B) global prosperity and an increased global demand for oil C) global politics and an increased reliance on foreign oil D) a ban on offshore exploration in the United States
Lake-effect snows are best developed around the Great Lakes during
a. early spring when moist, tropical air moves over the frozen lakes. b. late fall and early winter when cold, dry polar air moves over the relatively warm water c. late fall and early winter when moist, polar air sweeps in from the east. d. middle winter when the unseasonably warm air mass moves over the cold water. e. late winter after prolonged periods of cold weather.
Layers in sedimentary rocks are called ________
A) foliation
B) deposits
C) beds
D) striations