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Which of the following is true about U.S.history prior to 1945?
Barrel of Oil
A unit of measure for crude oil and other petroleum products, equivalent to 42 US gallons.
Environmental Surprise
Unanticipated or unforeseen events or changes in the environment that can drastically impact ecosystems and human societies.
pH
A measure of how acidic or basic a solution is, on a scale of 0 to 14, where 7 is neutral, values less than 7 are acidic, and values greater than 7 are basic.
Solar Radiation
Energy from the sun that is emitted as electromagnetic radiation, which includes both visible light and invisible rays, and is the primary natural source of energy for Earth's climate system.
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