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.

50. (1) How do we know great photos when we see them? (2) Most importantly, they put smiles on our faces instantly. (3) While digital cameras make the act of taking lots of pictures simpler, quantity does not necessarily guarantee quality. (4) They’re the pictures that capture our memories and freeze special moments in time. (5) Getting those perfect shots, however, is not always easy. (6) We share them with family and friends and want to be sure they last forever. (A) 12435 6 (B) 14 6 5 3 2 (C) 126435 (D) 146253

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

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.

10. What does the passage mainly discuss? (A) Educational changes in Canadian society. (B) Canada during the Second World War (C) Population trends in postwar Canada (D) Standards of living in Canada