Mining waste accounts for about ___________________of all U.S. solid waste
Fill in the blanks with correct word
three-fourths (or 75%)
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Groundwater
a. has turbulent flows that dilute pollutants b. has large populations of decomposing bacteria that break down degradable wastes c. is cold, which slows down decomposition rates d. may take five to ten years to cleanse itself of wastes e. is quickly renewable
Why is it not a good idea to seek shelter from a thunderstorm beneath a tree?
The most dangerous part of the day for firefighting is _____, when weather is hottest and winds often blow the fire in unpredictable directions
a. between midnight and dawn b. early morning c. mid-morning d. midday e. late afternoon
Tropical savanna climate regions are usually not well suited to agriculture
Indicate whether the statement is true or false