The blunt edge of a drumlin faces ________
A) perpendicular to the ice flow
B) in the direction opposite to the flow of ice
C) along with the direction of ice flow
D) into the wind
E) uphill
Answer: B
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Devices that convert solar energy directly into electrical energy are called ____.
A. solar thermal systems B. passive solar systems C. active solar heating systems D. photovoltaic cells E. concentrated solar plants
Inuit people who live in the Arctic tundra have high levels of DDT in their bodies, but live and work far from areas of industrial pollution. They eat seals and fish; seals eat fish. Which mechanism accounts for the high concentrations of DDT?
A. biological magnification B. optical magnification C. drinking Groundwater D. absorption through skin
In Ukraine, Russian speakers are largely found in what part of the country?
A) northern
B) eastern
C) southern
D) western
E) the areas around the capital city of Kiev
Discuss the fundamental geologic principles that are used in relative geologic dating. Who
developed these principles? What will be an ideal response?