1A on pages Name 201-244 in your textbook. Student Number City the statement is
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1A on pages Name 201-244 in your textbook. Student Number City the statement is true. If the statement is false, circle F; then write the word or phrase State Code ge hliank line that makes the statement true when substituted for the word or phrase in the boldface type. l.TF1 Absolute age only indicates that one rock layer is younger or older than another rock layer During James Hutton's lifetime, the consensus was that the Earth was about 6000 years old 2, T 3. T F The boundary between 2 layers of sedimentary rock is a transition zone. An unconformity is the interface between rock layers where there is a break in the geologic record because of erosion. 5. T F A break in the geologic record that represents an interval of missing time is called a gap. A fault is a break or crack in Earth's crust along which rocks shift their position. Isotopes of the same element have the same number of protons but different numbers of electrons. 7. T F The study of fossils is archeology. Fossils that form in hardened tree sap are examples of amber. Evolution is a process by which new species develop from preexisting species by means of natural selection. 10. TFExplanation / Answer
1, Absolute age only indicates one rock layer is younger or older than other rock layer - F.
Absolute age is determined to know the exact age of rock by the conataining radioactive elements. Thus by different radioactive isotope methods are used to determine the age of the rock. It is not only determination of age of the rock, but also age of the fossils can be known from these methods. On the other hand, relative age determinations include lithology, fossil contents to compare age of different rock layers.
2. During James Hutton's lifetime, the consensus was that the Earth was about 6000 years old - F.
James Hutton established the theory of uniformitarianism that states the Earth's crust formation by different processes. He did not tell the exact age of the Earth formation.
3. The boundary between 2 layers of sedimentary rocks is a transition zone - T.
The layers of sedimentary rocks is called strara. One layer of deposition indicates one single rock bed. Thus, layers are different from each other by their characterictics. In between two layers there must be a transition zone.
4. An unconformity is an interface between two layers where there is a break in geologic record due to erosion - T.
An unconformity is also called an erosional or non-depositional surface where the continuity of deposition of rock layers break. Therefore a gap in geological record comes. The lower rock layer below the unconformity is always older and the upper layer is younger. The upper layer is mostly show horizontal relation with the unconformity surface.
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