1. The author refers to the ocean bottom as a
"frontier" in line 2 because it
(A) is not a popular area for scientific research
(B) contains a wide variety of life forms
(C) attracts courageous explorers
(D) is an unknown territory
2. The word "inaccessible" in line 3 is closest in
meaning to
(A) unrecognizable
(B) unreachable
(C) unusable
(D) unsafe
3. The author mentions outer space in line 7 because.
(A) the Earth's climate millions of years ago was
similar to conditions in outer space
(B) it is similar to the ocean floor in being alien to
the human environment
(C) rock formations in outer space are similar to
those found on the ocean floor
(D) techniques used by scientists to explore outer
space were similar to those used in ocean
exploration
4. Which of the following is true of the Glomar
Challenger?
(A) It is a type of submarine.
(B) It is an ongoing project.
(C) It has gone on over 100 voyages.
(D) It made its first DSDP voyage in 1968.
5. The word "extracting " in line 13 is closest in
meaning to
(A) breaking
(B) locating
(C) removing
(D) analyzing
6. The Deep Sea Drilling Project was significant
because it was
(A) an attempt to find new sources of oil and gas
(B) the first extensive exploration of the ocean
bottom
(C) composed of geologists from all over the world
(D) funded entirely by the gas and oil industry
7. The word "strength" in line 21 is closest in
meaning to
(A) basis
(B) purpose
(C) discovery
(D) endurance
8. The word "they " in line 26 refers to
(A) years
(B) climates
(C) sediments
(D) cores
9. Which of the following is NOT mentioned in the
passage as being a result of the Deep Sea Drilling
Project?
(A) Geologists were able to determine the Earth's
appearance hundreds of millions of years ago.
(B) Two geological theories became more widely
accepted by scientists.
(C) Information was revealed about the Earth's past
climatic changes.
(D) Geologists observed forms of marine life never
before seen.