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In the following passage from question Nos. 1 to 10, some of the words have been left out. First read the passage over and try to understand what it is about. Then fill in the blanks with the help of the alternatives given.
Planet Nine — the undiscovered planet at the (1) of the solar system — may be responsible for the unusual tilt of the Sun, according to a new study.
The large and (2) planet that was predicted to exist in January this year may be adding a wobble to the solar system, giving the appearance that the Sun is (3) slightly, researchers said.
“Because Planet Nine is so (4) and has an orbit tilted compared to the other planets, the solar system has no choice but to slowly twist out of alignment,” said a graduate student.All of the planets orbit in a flat plane with respect to the Sun, roughly within a couple (5) of each other. That plane, however, rotates at a six-degree tilt with respect to the Sun — giving the appearance that the Sun itself is cocked off at an angle. Until now, no one had found a compelling explanation to produce such an effect.
“It’s such a deep-rooted mystery and so difficult to explain that people just do not talk about it,” said Caltech’s Mike Brown. The (6) of evidence that the Sun is orbited by an as-yet-unseen planet — that is about 10 times the size of Earth with an orbit that is about 20 times farther from the Sun on average than Neptune’s — changes our understanding of physics. Planet Nine, based on their calculations, appears to orbit at about 30 degrees off from the other planets’ orbital plane — in the process, (7) the orbit of a large population of objects in the Kuiper Belt, which is how Brown and Konstantin, from Caltech, came to suspect a planet existed there in the first place.
“It continues to (8) us; every time we look carefully we continue to find that Planet Nine explains something about the solar system that had long been a mystery,” said Batygin. The tilt of the solar system’s orbital plane has long (9) astronomers because of the way the planets formed: as a spinning cloud slowly collapsing first into a disk and then into objects orbiting a (10) star.
1. Choose the correct option for (1)
A. verge
B. corner
C. edge
D. allude
2. Choose the correct option for (2)
A. distinct
B. distant
C. rear
D. wide
3. Choose the correct option for (3)
A. force
B. curves
C. tilt
D. tilted
4. Choose the correct option for (4)
A. least
B. massive
C. huge
D. incumbent
5. Choose the correct option for (5)
A. degrees
B. centre
C. marks
D. upon
6. Choose the correct option for (6)
A. theme
B. search
C. discovery
D. invention
7. Choose the correct option for (7)
A. adhere
B. knocked
C. influencing
D. peer
8. Choose the correct option for (8)
A. surprising
B. ameliorate
C. happy
D. amaze
9. Choose the correct option for (9)
A. befuddled
B. foggy
C. soggy
D. amused
10. Choose the correct option for (10)
A. main
B. central
C. essential
D. basic
ANSWERS
Q.1. Option (C)
Q.2. Option (B)
Q.3. Option (D)
Q.4. Option (B)
Q.5. Option (A)
Q.6. Option (C)
Q.7. Option (C)
Q.8. Option (D)
Q.9. Option (A)
Q.10. Option (B)
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