General Science and Ability 2018

**Antibiotics are used to fight against:**A) ProteinsB) VirusesC) BacteriaD) None of these Show Answer Correct Answer: C – Bacteria

**An astronomical unit or light year is used for:**A) DistanceB) Time periodC) Light intensityD) Time Show Answer Correct Answer: A – Distance

**Radio waves broadcasted by radio broadcasting are reflected back by:**A) IonosphereB) StratosphereC) MesosphereD) None of these Show Answer Correct Answer: A – Ionosphere

**The use of antibiotics is a very effective way of killing disease-causing bacteria. Sometimes people don’t finish all of their pills. This can result in:**A) Some bacteria left un-killedB) Production of more bacteriaC) Bacteria becoming sensitive to antibioticsD) Bacteria becoming resistant to antibiotics Show Answer Correct Answer: D – Bacteria becoming resistant to antibiotics

**During combustion of petrol in a car engine, energy is converted into:**A) ChemicalB) MechanicalC) ElectricalD) None of these Show Answer Correct Answer: B – Mechanical

**Proteins are made up of:**A) PolynucleotideB) PolypeptideC) OxyacetyleneD) None of these Show Answer Correct Answer: B – Polypeptide

**A barometer is used for measuring:**A) TemperatureB) HumidityC) PressureD) None of these Show Answer Correct Answer: C – Pressure

**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 wavesB) Infrared wavesC) Ultrasonic wavesD) Supersonic waves Show Answer Correct Answer: C – Ultrasonic waves

**An ionic bond between two atoms is:**A) Complete transfer of valence electronsB) Half transfer of valence electronsC) Complete transfer of electronsD) None of these Show Answer Correct Answer: A – Complete transfer of valence electrons

**How is dengue fever transmitted?**A) Bite of an infected mosquitoB) Bite of an infected male Aedes mosquitoC) Bite of an infected female Anopheles mosquitoD) Bite of an infected female Aedes mosquito Show Answer Correct Answer: D – Bite of an infected female Aedes mosquito