These seismic waves have the highest average velocity.
A. surface waves
B. P waves
C. S waves
Answer: B
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How many electrons are gained or lost in the following half-reaction? Zn ? Zn+2
A. 2 electrons are lost B. 1/2 electron is gained C. 1/2 electron is lost D. 2 electrons are gained E. 4 electrons are gained
Temperatures in cities are higher as a result of
A) pavement and buildings storing heat during the day and releasing it at night. B) increased evapotranspiration in the city. C) greater insolation. D) increased number of trees.
Petroleum products would be classified as which resource type?
a. Renewable physical resource b. Nonrenewable physical resource c. Renewable biological resource d. Nonrenewable biological resource e. Nonrenewable ecological resource
The main current in Antarctic waters is the ________ Current
A) Antarctic Circumpolar B) Benguela C) Malvinas D) South Australian E) South Equatorial