Philip Levin, Donald Levin and other biologist have cautioned us that speciation rates can increase for opportunistic species such as
a. Fish
b. Birds
c. reptiles and birds
d. birds and weeds
e. weeds, rodents and cockroaches
E
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Inclusions, or fragments, in a body of rock must be composed of material that is younger than the
rock itself. Indicate whether the statement is true or false.
The amount of dissolved oxygen that seawater can hold in solution will be greater in ____
A) colder water B) warmer water C) water with a higher salinity D) water with lower pressure and density
What kind of unconformity is visible in this figure? The unconformity in the question is indicated by the Arrow B
A) Disconformity B) Nonconformity C) Angular unconformity
Which of the following statements concerning mudflows is not true?
A) Mudflows deposit talus slopes. B) Mudflows may be caused by heavy rains or melting snow. C) In hilly areas, mudflows move down the canyons and stream valleys. D) Mudflows can move and carry very large boulders and other coarse debris.