Which country has the largest proven reserves of coal?
A. Indonesia
B. China
C. the United States
D. Australia
E. India
Answer: C
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Gravity does no work on a bowling ball that travels along a bowling alley because
A. no potential energy converts to kinetic energy. B. no distance is covered by the ball. C. the force on the ball is at right angles to its motion. D. no force acts on the ball.
As a new member of your city council, your small town realizes that the old wastewater treatment facility is resulting in unacceptable levels of cultural eutrophication
Relying upon provisions of the 1987 Water Quality Act, you suggest that the best way for your town to address this problem is to A) merge the storm water and sanitary sewer systems to dilute the nutrients your town produces. B) apply for grants from the Environmental Protection Agency to pay for herbicides to control phytoplankton growth. C) seek a low-interest loan from the Clean Water State Revolving Fund to pay for a new wastewater treatment facility. D) apply for a grant from the federal Eutrophication Services Administration that will pay for the construction of a new wastewater treatment facility.
A sea or land breeze is caused by temperature differences
a. true b. false
Humans are
A) heterotrophs. B) autotrophs. C) chemoautotrophs. D) archaeans.