Science- Paper-VI
This paper contains 25 questions. All questions are compulsory. Each question carry 2 marks. Max. time to complete this paper is 30 minutes.
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1. A line which cuts a pair of parallel lines is called *
2 points
2. An angle whose value is ____, is called complete angle. *
2 points
3. The areas of two similar triangles are 81 sq. cm and 49 sq. cm. Find the ratio of their corresponding heights. *
2 points
4. Consider ΔABD such that angle ADB = 20° and C is a point on BD such that AB=AC and CD=CA. Then the measure of angle ABC is *
2 points
5. If the length and breadth of a rectangle are increased by a% and b% respectively, then the area will be increased by *
2 points
6. A, B and C can complete a piece of work in 14, 6 and 12 days respectively. Working together, they will complete the work in *
2 points
7. If Px = Qy = Rz  and Q/P = R/Q, then 2z/(x+z) = ? *
2 points
8. A shopkeeper purchases 15 mangoes for Rs. 10 and sells them at 10 mangoes for Rs. 15. Thus, he earns a profit of *
2 points
9. 4950/6 + 112 x 1.75 = ? x 2 *
2 points
10. If a certain sum of money can become 5 times of its principal in 10 years, then the rate of interest is *
2 points
11. An amount of Rs. 10,000 becomes Rs. 20,736 in 2 years. If the rate of interest is compounded half yearly, what is the annual rate of interest? *
2 points
12. The natural fats and oils are composed of *
2 points
13. The energy value of food is measured in *
2 points
14. Wind energy is the __________ energy. *
2 points
15. Who is considered the founder of meteorology? *
2 points
16. Water covers __________ of the Earth’s surface *
2 points
17. In general, wind speed of 105–137 km/h cause *
2 points
18. Acid rain is mainly caused by emissions of __________ in the atmosphere. *
2 points
19. About 50% of the Earth’s crust, including the waters on the Earth and atmosphere, is *
2 points
20. The fourth state of matter is *
2 points
21. The device used to convert Alternate Current into Direct Current is called *
2 points
22. In night, when photosynthesis is stopped, plants *
2 points
23. During photosynthesis, plants *
2 points
24. __________ are called the powerhouses of the cell. *
2 points
25. Mitochondria contain their own supply of *
2 points
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