Page 10 - 수영만72_9C8
P. 10
Unit 1 Radiometric Dating
7. According to paragraph 5, why can uranium-lead dating be used to date older materials
than carbon dating?
(A) Uranium-lead dating takes into account multiple isotopes.
(B) Uranium isotopes are more plentiful in most specimens.
(C) Uranium isotopes are preserved in igneous rocks.
(D) The decay rate of uranium isotopes is much longer.
8. What can be inferred about uranium-lead dating based on the information in paragraph 6?
(A) It is a more complex process than carbon dating.
(B) It only works on organic samples.
(C) It has a narrow range of applications.
(D) It only works on microscopic samples.
9. Look at the four squares [A~D] that indicate where the following sentence could be added
to the passage. Where would the sentence best fit? [A]
For this reason, it is a vital tool for those studying the evolution of species or the
ancient origins of man.
10. Directions: Select the appropriate phrases from the answer choices and match them to the
dating method to which they relate. TWO of the answer choices will NOT be used.
Answer Choices [Carbon dating]
(B)
(A) measures the ratio of isotopes (D)
(B) used to date dead organisms
(C) originally developed for military use [Uranium-lead dating]
(D) susceptible to contamination (F)
(E) more cost-effective method of dating (G)
(F) radioactive decay may damage the sample
(G) takes into account two different isotopes [Both]
(A)
- 10 -
7. According to paragraph 5, why can uranium-lead dating be used to date older materials
than carbon dating?
(A) Uranium-lead dating takes into account multiple isotopes.
(B) Uranium isotopes are more plentiful in most specimens.
(C) Uranium isotopes are preserved in igneous rocks.
(D) The decay rate of uranium isotopes is much longer.
8. What can be inferred about uranium-lead dating based on the information in paragraph 6?
(A) It is a more complex process than carbon dating.
(B) It only works on organic samples.
(C) It has a narrow range of applications.
(D) It only works on microscopic samples.
9. Look at the four squares [A~D] that indicate where the following sentence could be added
to the passage. Where would the sentence best fit? [A]
For this reason, it is a vital tool for those studying the evolution of species or the
ancient origins of man.
10. Directions: Select the appropriate phrases from the answer choices and match them to the
dating method to which they relate. TWO of the answer choices will NOT be used.
Answer Choices [Carbon dating]
(B)
(A) measures the ratio of isotopes (D)
(B) used to date dead organisms
(C) originally developed for military use [Uranium-lead dating]
(D) susceptible to contamination (F)
(E) more cost-effective method of dating (G)
(F) radioactive decay may damage the sample
(G) takes into account two different isotopes [Both]
(A)
- 10 -
