If we consider the elements C, N, and O, which types of orbitals do these elements use in bonding?
A) only s
B) only p
C) both s and p
D) s, p and d
C
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An area of forest that is repeatedly clear-cut and replanted in order to provide commercial wood products is called a(n)
A. old growth forest. B. tree farm. C. pulp mill. D. second growth forest. E. virgin forest.
The rate of groundwater flow is proportional to the
A) recharge and discharge B) the hydraulic gradient and hydraulic conductivity C) confinement of the aquifer D) rate of pumping
Indian reservations are among the poorest communities in both the U.S and Canada. What problems do reservations currently experience?
Many species have provided medicines and products demonstrating that biodiversity has ________ value and should therefore be preserved
A) entertainment B) ethical C) economic D) religious E) aesthetic