This quiz works best with JavaScript enabled. Home > Science > General Science – Quiz 155 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 155 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. A distance time graph shows A) As the distance increases, the rate of speed does not change. B) The speed of the object decreases at a steady rate over time. C) The distance increases at a steady rate over time. D) The object's speed does not change over time. Show Answer Correct Answer: C) The distance increases at a steady rate over time. 2. Roots that grow straight down into the soil are called taproots. A) True. B) False. Show Answer Correct Answer: A) True. 3. The speed of an object in a given direction is called: A) Velocity. B) Speed. C) Mechanics. D) Relative motion. Show Answer Correct Answer: A) Velocity. 4. A(n)..... is a natural solid made of one or more minerals. A) Streak. B) Luster. C) Rock. D) None of above. Show Answer Correct Answer: C) Rock. 5. The period from 4.6 billion years to 570 years ago is called the A) Phanerozoic eon. B) Mesozoic era. C) Paleozoic era. D) Precambrian eon. Show Answer Correct Answer: D) Precambrian eon. 6. Denser region of a longitudinal wave A) Compression. B) Amplitude. C) Rarefraction. D) Frequency. Show Answer Correct Answer: A) Compression. 7. Melting Point of ice is A) 100 degrees Celsius. B) 0 degrees Celsius. C) 0 degrees Fahrenheit. D) None of above. Show Answer Correct Answer: B) 0 degrees Celsius. 8. Organisms in Animalia with no backbone. A) Vertebrates. B) Invertebrates. C) Exoskeleton. D) Endoskeleton. Show Answer Correct Answer: B) Invertebrates. 9. Type of microscope that uses beams of electrons to create an enlarged image of a specimen A) Light microscope. B) Stereo microscope. C) Electron microscope. D) Compound microscope. Show Answer Correct Answer: C) Electron microscope. 10. Study of the interactions of organisms & their environment A) Carrying capacity. B) Population size. C) Ecology. D) Ecosystem. Show Answer Correct Answer: C) Ecology. 11. What is the density of 1 mL of water? A) 0.1 g/cm3. B) 1 g/cm3. C) 10 g/cm3. D) 100 g/cm3. Show Answer Correct Answer: B) 1 g/cm3. 12. For charges which of the following is true A) All charges are +. B) + and-charges attract. C) + and + charges attract. D) A-and-charge attract. Show Answer Correct Answer: B) + and-charges attract. 13. Choose the correct substance which is used for making solar cells. A) Silicon. B) Aluminium. Show Answer Correct Answer: A) Silicon. 14. What is the life span of WBC? A) 2-15 days. B) 4-15 days. C) 3-15 days. D) 5-20 days. Show Answer Correct Answer: A) 2-15 days. 15. An autotroph is a produce that makes its own food. A) True. B) False. Show Answer Correct Answer: A) True. 16. Where does photosynthesis happen in plants? A) Chloroplasts. B) Epidermis. C) Roots. D) Stomata. Show Answer Correct Answer: A) Chloroplasts. 17. Which of the following is the heaviest metal? A) Osmium. B) Mercury. C) Iron. D) Nickel. Show Answer Correct Answer: A) Osmium. 18. Scientists decide what atoms look like based on how the atoms act. A) True. B) False. Show Answer Correct Answer: A) True. 19. Chemical formula for water is? A) Nun2. B) H2O. C) Reckless. D) CaSiO3. Show Answer Correct Answer: B) H2O. 20. Zymology is the study of: A) Skin. B) Human Bones. C) Fermentation. D) Tissues. Show Answer Correct Answer: C) Fermentation. ← PreviousNext →Related 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 9General Science Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books