Incinerator ash is commonly contaminated with highly concentrated toxic substances.
Answer the following statement true (T) or false (F)
True
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The last glacial minimum ended approximately 15,000 years ago.
Answer the following statement true (T) or false (F)
Tropospheric ozone ________
A) binds with hemoglobin, preventing binding with oxygen in red blood cells B) is produced through the interaction of UV light with nitrogen oxides and carbon-containing compounds C) is a primary pollutant D) is caused by poor farming techniques E) protects Earth from most of the harmful UV radiation
Devil's Tower probably represents
a. a sedimentary debris flow. d. a granite batholith. b. the eroded neck of a volcano. e. a plutonic sill. c. vertically tilted metamorphic rocks.
What are the stinging cells present in cnidarians?
A) Cnidoblasts B) Spicules C) Nettles D) Gastrodermis