❑ Select the best option/answer and fill in the appropriate Box on the Answer Sheet:

  1. Astronomical unit of light year is used for:

(a) Distance                                                                                     (b) Time Period

(c) Light intensity                                                       (d) Time

  • None of these
  1. The use of antibiotic is a very effective way of killing disease causing bacteria. Sometime

people don’t finish all of their pills. This can result in:

  • Some bacteria left unkilled
  • Production of more bacteria
  • Bacteria becoming sensitive to antibiotics
  • Bacteria becoming resistant to antibiotics
  1. Proteins are made up of:

(a) Polynucicotide                                                (b) Polvventide

(c) Oxyacetylene                                                     (d) None of these

  1. The principle used in radar is the same as that of Sonar. In radar we use radio waves,

whereas in sonar we use:

(a) Red waves                                                          (b) Infrared waves

  1. c) Ultrasonic (d) Supersonic

(e) None of these

  1. How is dengue fever transmitted?
  • Bite of an infected mosquito
  • Bite of an infected male Aedes mosquito
  • Bite of an infected female Anopheles mosquito
  • Bite of an infected female Aedes mosquito
  1. The sky is blue because of:

(a) Ravleieh scattering                                                          (b) Reflection

(c) Mie scattering                                                 (d) Absorption

(e) Refraction

  1. Cyclones:
  • Experience Coriolis effects that deflect air to the right in the Southern Hemisphere.
  • Are associated with super geostrophic
  • Are typically regions of fair weather
  • Are associated with lowpressure systems
  8.                           Rainbow formation is due to:

(a)   Absorption of sunlight by water droplets

(b)   Diffusion of sunlight through water droplets

(c)    ionization of water droplets

(d)   Refraction and reflection of sunlight by water droplets

9.                       Layer of atmosphere in which Ozone layer lies is:

(a) Exosphere              (b) Mesosphere            (c) Troposphere

(d) Stratosphere


  1. Which distance is bigger – an astronomical unit (AU) or a light-year (LY)?

(a) An astronomical unit (AUJ)                            (b) Neither one is a measurement of distance

(c) They’re both about the same distance          (d) A light-year (LY)

  1. Rotation in which Earth rotates is from: (a) West to east (b) East to west      (c) North to south           (d) South to north
12.     Collection of water droplets which are suspended in air are called: (a) Wind         (b) Cloud                         (c) Gases

13.     How many calories should you eat per day to lose weight? (a) 2000        (b) 2500                     (c) 1500

(d) Sleet
(d) 3000


  1. Time interval to complete one revolution of earth around its own axis is

(a) 22 hours                                                 (b) 23 hours

(c) 24 hours                                                (d) 23 hours 56 minutes

  1. Enzyme in human bodies are: (a) Protein (b) Virus      (c) Bacteria                    (d) None of these
  2. Antibiotics are used to fight against: (a) Pathogens (b) Virus    (c) Bacteria                        (d) Proteins
  3. Radio waves broadcasted by Radio Broadcasting is retteLicd back by: (a) Ionosphere (b) Stratosphere             (c) Mesosphere           (d) None of these
  4. During combustion of petrol in car engine, energy is converted in: (a) Chemical (b) Mechanical              (c) Electrical                (d) None of these
  5. Barometer is used for measuring: (a) Temperature (b) Humidity      (c) Pressure                        (d) None of these
  6. Ionic bond is between two atoms is:

(a) Complete transfer of valence electron     (b) Half transfer of valence electron

(c) Complete transfer of electron and proton     (d) None of these