This quiz works best with JavaScript enabled. Home > Science > Overview > General Science – Quiz 51 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books General Science Quiz 51 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. The basic unit of life is the A) Cell. B) Tissue. C) Atom. D) Organ. Show Answer Correct Answer: A) Cell. 2. Who was the first person to walk on the Moon? A) Neil Armstrong. B) Edwin Aldrin. C) Michael Collins. D) Sputnik. Show Answer Correct Answer: A) Neil Armstrong. 3. Velocity is A) Speed and acceleration. B) Constant speed. C) A frame of reference. D) Speed in a given direction. Show Answer Correct Answer: D) Speed in a given direction. 4. Carbon-14 has a half life of 5730 years, how many years would it take the 4.0 g sample to decay to 0.25 g? A) 4 years. B) 5730 years. C) 22, 920 years. D) 28, 650 years. Show Answer Correct Answer: C) 22, 920 years. 5. The movement of air particles around a vibrating object is a..... A) Light wave. B) Sound wave. C) Tidal wave. D) None of above. Show Answer Correct Answer: B) Sound wave. 6. What is the negative subatomic particle that orbits the nucleus A) Proton. B) Neutron. C) Electron. D) Voltron. Show Answer Correct Answer: C) Electron. 7. Between Mars and Jupiter? A) Comets. B) Crown. C) Asteroids. D) Energy. Show Answer Correct Answer: C) Asteroids. 8. It is the outermost layer of the atmosphere A) Exosphere. B) Troposphere. C) Mesosphere. D) Thermosphere. Show Answer Correct Answer: A) Exosphere. 9. Surface between tropic of cancer A) Zone. B) Gets masked by dominant genes. C) Bacteria. D) Louis Pasteur. Show Answer Correct Answer: A) Zone. 10. What gas do humans exhale that plants need to live? A) Oxygen. B) Carbon Dioxide. C) Nitrogen. D) None of above. Show Answer Correct Answer: B) Carbon Dioxide. 11. If the kinetic energy of a body is 40J, and the mass is 5kg, find its average velocity. A) 4 m/s. B) 12 km/h. C) 13 m/s. D) 5 m/s. Show Answer Correct Answer: A) 4 m/s. 12. Biotic factors refers to the living factors that affect an organism within an ecosystem. A) True. B) False. Show Answer Correct Answer: A) True. 13. Which acid is used in cold drinks/soft drinks? A) Sulphuric acid. B) Carbonic acid. C) Hydrochloric acid. D) Citric acid. Show Answer Correct Answer: B) Carbonic acid. 14. Layer of debris on the Moon's surface formed by the accumulation of meteoric material A) Regolith. B) Ellipse. C) Revolution. D) Rotation. Show Answer Correct Answer: A) Regolith. 15. True or False?The satellites of Uranus revolve around the planet in planes parallel to its orbit. A) True. B) False. Show Answer Correct Answer: B) False. 16. Bio-magnification is ..... A) Magnification of mass of biosphere. B) Accumulation of chemicals at the successive trophic levels of a food chain. Show Answer Correct Answer: B) Accumulation of chemicals at the successive trophic levels of a food chain. 17. Mechanics is the branch of Physics that deals with? A) Mechanical Energy. B) Mechanical Engineering. C) Mechatronics. D) All kinds of motions. Show Answer Correct Answer: D) All kinds of motions. 18. What is the function of the vacuole in plant cells? A) The vacuole is responsible for storing genetic information and controlling the cell's activities. B) The vacuole is responsible for producing energy for the cell. C) The vacuole is responsible for providing structural support to the cell. D) The vacuole is responsible for storing water, nutrients, and waste products in the cell. NGSS.MS-LS1-2. Show Answer Correct Answer: D) The vacuole is responsible for storing water, nutrients, and waste products in the cell. NGSS.MS-LS1-2. 19. 5th planet from the Sun; the largest planet with continuous, swirling, high-pressure gas storms A) Earth. B) Mars. C) Venus. D) Jupiter. Show Answer Correct Answer: D) Jupiter. 20. Black holes are formed when stars lose gas to burn, form a red super giant, cool down, then become so dense..... A) The star flattens like a pancake. B) The matter of the star collapses on itself. C) The star turns into a giant ice ball. D) The star explodes. Show Answer Correct Answer: B) The matter of the star collapses on itself. ← 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