Questions :- 1. Air pollution causes _________ (a) Global warming (b) Respiratory Problems (c) Soil erosion (d) None of these 2. CNG is a ________ (a) Polluted fuel (b) Harmful fuel (c) Clean fuel (d) None of these 3. Name the substances that pollute water. (a) Air pollutant (b) Water pollutant (c) Land pollutant (d) … Read more
Questions :- 1. The layer of air present around the earth is called ___________ (a) Smog (b) Pollution (c) Atmosphere (d) None of these 2. Name the substances which contaminate the air. (a) Air pollutant (b) Water pollutant (c) Land pollutant (d) None of these 3. When air is contaminated by unwanted substances which have … Read more
Questions :- 1. Name the well-known constellation that can be seen during winter in the late evenings. (a) Cassiopeia (b) Orion (c) Sirius (d) None 2. Which is the brightest star in the sky? (a) Cassiopeia (b) Orion (c) Sirius (d) None 3. Name the constellation which looks like a distorted letter W or M. … Read more
Questions :- 1. Name the natural object which is located outside of Earth atmosphere such as moon, planet and moon. (a) Terrestrial object (b) Celestial object (c) Both (d) None 2. Which is the brightest planet of the solar system? (a) Earth (b) Uranus (c) Neptune (d) Venus 3. The study of celestial objects and … Read more
Questions :- 1. Name the transparent part of the eyes which covers front portion of the eye. (a) Iris (b) Pupil (c) Cornea (d) None of these 2. Name the coloured part of the eye which is behind the cornea. (a) Iris (b) Pupil (c) Cornea (d) None of these 3. Name the part of … Read more
Questions :- 1. Name the ray which travels from source to the reflecting surface. (a) Reflected ray (b) Incident ray (c) Refracted ray (d) None of these 2. Name the ray which comes back from the surface after reflection. (a) Reflected ray (b) Incident ray (c) Refracted ray (d) None of these 3. How many … Read more
Questions :- 1. Sparkers can be seen on electric dipole when wires become _________ (a) Loose (b) Tight (c) Both (d) None 2. Name the device used to protect buildings from the effect of lightning. (a) Metallic conductor (b) Electrolytic conductor (c) Lightning conductor (d) None of these 3. Benjamin Franklin showed lightning in _________ … Read more
Questions :- 1. Name the resin which produces sparks is _________ (a) Amber (b) Gum (c) Rubber (d) None of these 2. Name the device which is used to detect whether an object is charged or not. (a) Spectroscope (b) Electroscope (c) Microscope (d) None of these 3. Which of them is a classical type … Read more
Questions :- 1. Adding common salt to distilled water makes it ___________ (a) Good conductor (b) Poor conductor (c) Both (d) None 2. An electrolyte is a ___________ (a) Metal (b) Solution (c) Liquid that conducts current (d) None of these 3. Distilled water is a ___________ (a) Good conductor of electricity (b) Poor conductor … Read more
Questions :- 1. Materials, which allow electric current to pass through them, are __________ conductors of electricity. (a) Good (b) Bad (c) Good as well as bad (d) None of these 2. Materials, which do not allow electric current to pass through them easily, are ___________ conductors of electricity. (a) Good (b) Bad (c) Good … Read more