Sedimentary layer A is found above sedimentary layer B, and the two are separated by a horizontal layer of ash, C. Therefore, the order from oldest to youngest is
a. B, C, A.
b. C, B, A.
c. A, C, B.
d. none of these.
[Ques. 2] The earliest evidence of ancient life, blue-green algae, are
a. cyanobacteria.
b. amber.
c. foraminifera.
d. coal.
[Ques. 3] Another name for cyanobacteria, the earliest evidence of ancient life, is
a. blue-green algae.
b. amber.
c. foraminifera.
d. coal.
[Ques. 4] Trace fossils are
a. tracks only.
b. borings only.
c. burrows only.
d. all of the above.
[Ques. 5] Tracks, borings, and burrows are examples of
a. replaced remains.
b. index fossils.
c. trace fossils.
d. microfossils.
[Ques. 6] Amber is fossilized
a. bone.
b. tree resin.
c. shell.
d. plant.
[Ques. 7] Fossilized tree resin is known as
a. coal.
b. amber.
c. opal.
d. stromatolite.
[Ques. 8] Paleontology is the study of
a. animals.
b. plants.
c. fossils.
d. none of these.
[Ques. 9] The study of fossils is called
a. cryptology.
b. petrology.
c. paleontology.
d. historical biology.
[Ques. 10] Carbonic acid is the main agent of ______________ weathering.
Fill in the blank(s) with correct word
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