1. Passage Reading
2. Verbal Logic
3. Non Verbal Logic
4. Numerical Logic
5. Data Interpretation
6. Reasoning
7. Analytical Ability
8. Quantitative Aptitude
15. (a) The Origins and Effects of Supernovas (Because the author starts with the origin of Supernova and then proceeds explaining the effects of Supernovas)
16. (c) about once every fifty years (Because "About twice every century" means once in 50 years)
17. (a) are caused by the collision of large galaxies (Because "one of the massive stars in our galaxy blows itself apart in a supernova explosion" collision of galaxy is not the reason for Supernova)
18. (a) Analogy (Because "The general picture that has been developed for the supernova explosion and its aftermath goes something like this" shows the use of analogy with some other phenomenon)
19. (c) include material not created in the normal development of our solar system (Because the use of anomalous in "Recent discoveries of meteorites with anomalous concentrations of certain isotopes")
20. (a) it is sometimes easier to detect supernovas by observation of the X-ray spectrum than by observation of visible wavelengths of light (Because "This gas will emit most of its energy at X-ray wavelengths, so it is not surprising that X-ray observatories have provided some of the most useful insights into the nature of the supernova phenomenon")
21. (d) An ordinary star exhausts its supply of nuclear fuel and begins to collapse (Because the first para tells that "Eventually the nuclear fuel is exhausted, and the pressure drops in the core. With nothing to hold it up, the matter in the center of the star collapses inward")
22. (b) an intermediate stage between an ordinary star and a supernova (Because the first para tells about the formation of neutron star from the ordinary star and the second para tells about the consequent formation of the supernova)
23. (d) describing the sequence of scientific events (Because the author has focused on the sequence of the formation of the supernova from the ordinary star)