Why might disposing of a lead-acid battery, nickel-cadmium battery, or mercury battery in a landfill be a bad thing?
A. Cadmium, mercury, and lead are all very reactive and generate highly unstable compounds.
B. Cadmium, mercury, and lead are all radioactive and release radiation.
C. Cadmium, mercury, and lead are all toxic metals and could leak out of the landfill.
D. all of the above
E. none of the above
Answer: C
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A) Graded Bedding B) Nonconformities C) Sandstone Layering D) Suspension Deposits E) Turbidity Currents
The St. Lawrence Valley and the Ontario Peninsula form the manufacturing heartland of Canada, producing perhaps ________ percent of the nation's industrial output
A) 25 B) 50 C) 75 D) 95
An igneous body injected between sedimentary strata that arches the bedrock above while the bottom layers remain relatively flat is called a ________
A) batholith B) laccolith C) dike D) sill
The time in Earth’s history before 4 billion years (4000 m.y.) is known as the ____
a. Hadean b. Proterozoic c. Archean d. Paleoarchean e. Eoarchean