Sand spits are formed from sand
A) carried along the coast by longshore transport.
B) swept up from the seafloor and heaped up along the shore by wave action.
C) swept up from the continental rise.
D) swept into a heap by tidal currents.
Answer: A
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Which of the following statements does not lend support to the idea that carbon dioxide is a cause of global warming?
A) Models of the greenhouse effect successfully predict the actual temperatures of Mars and Venus from their atmospheric carbon dioxide amounts. B) Models of Earth's climate that include recent increases in carbon dioxide concentration match the observed temperature increases better than those that do not include it. C) We understand the physical mechanism of the greenhouse effect, by which carbon dioxide increases cause an increase in the planet's temperature. D) Isotope ratios in atmospheric carbon dioxide show that much of the carbon dioxide in Earth's atmosphere today comes from the burning of fossil fuels.
Consider the n = 10 shell. (a) What is the largest value of the angular momentum quantum number, ?, in this shell? (b) How many electrons can be placed in this shell?
What will be an ideal response?
A large school district has 300 school buses. If each school bus is used 3.0 hours each day, the average speed of the school buses is 15 mi/h, and the fuel economy of the buses is 10 mi/gal
How much does it cost to run these buses for 22 school days if gasoline costs $4.10 a gallon? A) $60,000 B) $120,000 C) $180,000 D) $240,000
The objective lens of a microscope has a focal length of 2.4 mm and the eyepiece has an angular magnification of 15. The object is positioned 0.060 mm beyond the focal point of the objective
The focal point of the eyepiece is positioned at the real image formed by the objective. The near point of the microscope user is at 25 cm. The magnitude of the overall magnification of the microscope is closest to A) 400. B) 450. C) 500. D) 550. E) 600.