Which of the following is NOT a way in which fossils can be preserved?
A. They can be too small to see but can build diagnostic features in the rocks.
B. They can be buried and decay, leaving a cavity in the rock.
C. They can be preserved in ancient tree sap.
D. They can be replaced by hard materials, such as silica.
E. All of these are ways a fossil can be preserved.
Answer: E
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Which of the following is an example of an indirectly transmitted anthroponosis?
A) avian flu B) malaria C) Lyme disease D) Ebola E) HIV/AIDS
The policy of protecting domestic infant industries is called ________
What will be an ideal response?
Hurricanes are least likely to form
a. ?along the ITCZ. b. ?along the equator. c. ?with an easterly wave. d. ?when the trade wind inversion is weak. e. ?when the surface water temperature exceeds 25°C.
One-half second after starting from rest, a freely falling object will have a speed of about
A) 20 m/s. B) 10 m/s. C) 5 m/s. D) 2.5 m/s. E) none of the above