This quiz works best with JavaScript enabled. Home > Science > Overview > General Science – Quiz 12 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 12 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Catalyst A) Slows a reaction down. B) Speeds a reaction up. C) Has no impact on a reaction. D) None of above. Show Answer Correct Answer: B) Speeds a reaction up. 2. Occurs during the new moon. when Earth enters the Moon's umbra and casts a shadow on the Earth's surface A) Solstice. B) Lunar eclipse. C) Moon phase. D) Solar eclipse. Show Answer Correct Answer: D) Solar eclipse. 3. Where is DNA found in a cell? A) Chloroplast. B) Nucleus. C) Mitochondria. D) Cell wall. Show Answer Correct Answer: B) Nucleus. 4. What does the solar spectrum refer to? A) The total energy that reaches the earth from the sun. B) The heat that reaches the earth from the sun. Show Answer Correct Answer: A) The total energy that reaches the earth from the sun. 5. What is the orbital velocity of geo stationary satellite? A) 4.15 km/s. B) 2.78 km/s. C) 3.08 km/s. D) 6.66 km/s. Show Answer Correct Answer: C) 3.08 km/s. 6. What are atoms of the same type with different numbers of neutrons? A) Ions. B) Isotopes. C) Neutrons. D) Protons. Show Answer Correct Answer: B) Isotopes. 7. Wastes that are poisonous, that cause cancer, or that can catch fire are classified as..... A) Hazardous wastes. B) Stream discharges. C) Biomass. D) Radiant energy. Show Answer Correct Answer: A) Hazardous wastes. 8. Does the following chemical formula represent an element, compound, or mixture:NaCl? A) Element. B) Compound. C) Mixture. D) None of above. Show Answer Correct Answer: B) Compound. 9. Which fraction or product of petroleum is used in cars as fuel? A) Petrol. B) Kerosene oil. C) Diesel oil. D) Lubricant oil. Show Answer Correct Answer: A) Petrol. 10. In this type of symbiosis, one organism benefits, while the other is harmed. A) Mutualism. B) Commensalism. C) Parasitism. D) Abiotic. Show Answer Correct Answer: C) Parasitism. 11. Direct current flow in..... A) One Direction. B) Parallel direction. C) Multiple directions. D) Straight line. Show Answer Correct Answer: A) One Direction. 12. What is NOT a renewable energy source? A) Coal. B) Wind. C) Solar. D) Water. Show Answer Correct Answer: A) Coal. 13. Matter through which a wave travels A) Trough. B) Crest. C) Node. D) Medium. Show Answer Correct Answer: D) Medium. 14. What does it mean for a population to be considered as Extinction? A) When a particular species has started a rapid decline and is likely to become endangered in the near future. B) When a particular species has been reduced to the point where they are in danger of dying out. C) When a particular organism has completely died out. D) When a particular species has stared a rapid increase population wise. Show Answer Correct Answer: C) When a particular organism has completely died out. 15. Which of the following statements is true about heat transfer? A) It does not transfer. B) It transfers only when two objects are of similar temperature. C) It transfers from objects of lower temperature to objects of higher temperature. D) It transfers from objects of higher temperature to objects of lower temperature. Show Answer Correct Answer: D) It transfers from objects of higher temperature to objects of lower temperature. 16. Electric resistance is typically measure in what units? A) Kilowatt. B) Metric. C) Ounce. D) Ohms. Show Answer Correct Answer: D) Ohms. 17. Smoke is an example of A) Solid-in-gas mixture. B) Liquid-in-gas mixture. C) Gas-in-liquid mixture. D) Gas-in-solid mixture. Show Answer Correct Answer: A) Solid-in-gas mixture. 18. Who discover radium A) Madam Curie. B) Thomson. C) Chadwick. D) None of above. Show Answer Correct Answer: A) Madam Curie. 19. Spinning of Earth on its axis; used to measure time in days A) Revolution. B) Regolith. C) Rotation. D) Moon phase. Show Answer Correct Answer: C) Rotation. 20. All of the same species in an area is called? A) A population. B) Community. C) Biosphere. D) Ecosystem. Show Answer Correct Answer: A) A population. ← PreviousNext →Related QuizzesScience QuizzesGeneral Science Quiz 1General Science Quiz 2General Science Quiz 3General Science Quiz 4General Science Quiz 5General Science Quiz 6General Science Quiz 7General Science Quiz 8General Science Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books