A 5-kg fish swimming at 1 m/s swallows a 1-kg fish swimming toward it at 4 m/s. The speed of the larger fish after lunch is
A. 1/6 m/s.
B. 2/3 m/s.
C. 1/5 m/s.
D. 1/2 m/s.
Answer: A
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One solution to the problem of our overflowing landfills is to burn plastic objects instead of burying them. What would be some of the advantages and disadvantages of this practice?
A. disadvantage: loss of vital petroleum-based resource; advantage: generation of electricity B. disadvantage: discourages recycling; advantage: provides new jobs C. disadvantage: toxic air pollutants; advantage: reduced landfill volume D. all of the above
The base level of a stream is typically sea level
Indicate whether the statement is true or false
These areas are created when land erosion and a high water table have allowed some of the water to percolate to the surface
A) mandate B) qanats C) flaj D) foggara E) oases
The Great Basin region between the eastern Sierra Nevada in California and the Wasatch Mountains in Utah ________ in response to plate-tectonic forces.
A. has expanded in a north-south direction B. is now a subduction zone C. has been compressed in an east-west direction D. has been compressed in a north-south direction E. has expanded in an east-west direction