This quiz works best with JavaScript enabled. Home > Greenhouse > Cultivation Techniques > Greenhouse – Quiz 1 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Greenhouse Quiz 1 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What action is Marie performing when she removes the spent or dead flower from her zinnia? A) Sowing. B) Deadheading. C) Transplanting. D) Planting. Show Answer Correct Answer: B) Deadheading. 2. A greenhouse gas is A) A gas in the atmosphere that absorbs infrared radiation and emits it back to Earth. B) Oxygen. C) Nitrogen. D) A gas that is poisonous to us. Show Answer Correct Answer: A) A gas in the atmosphere that absorbs infrared radiation and emits it back to Earth. 3. Which layer in the atmosphere is responsible for the weather? A) Stratosphere. B) Ionosphere. C) Troposphere. D) Exosphere. Show Answer Correct Answer: C) Troposphere. 4. The main human activity that releases greenhouse gases is A) Using bottled water. B) Burning fossil fuels. C) Texting on cellphones. D) Eating meat. Show Answer Correct Answer: B) Burning fossil fuels. 5. Solar energy is best absorbed by what material? A) Dirt. B) Sand. C) Snow. D) Water. Show Answer Correct Answer: D) Water. 6. Fossil fuels were formed from ..... A) The remains of once living organisms. B) The earth. C) Solids, liquids, and gases, made millions of years ago. D) Sun and water. Show Answer Correct Answer: A) The remains of once living organisms. 7. Global climate change is responsible for: A) Sunny days. B) Colder weather on Earth. C) Warmer temperatures on Earth. D) More drinking water. Show Answer Correct Answer: C) Warmer temperatures on Earth. 8. What do humans do that releases greenhouse gases into the atmosphere? A) Burn fossil fuels (like gas and coal). B) Build cement buildings. C) Ride bikes and use solar energy. D) Compete in the Olympics. Show Answer Correct Answer: A) Burn fossil fuels (like gas and coal). 9. Which list shows all the things plants MUST HAVE to survive? A) Water, sunlight, soil. B) Air, water, soil. C) Air, water, sunlight. D) Sunlight, soil, water. Show Answer Correct Answer: C) Air, water, sunlight. 10. Which of the following is a TRUE statement about plant growth? A) Plants can grow without soil. B) Plants can grow without Sun's energy. C) Plants can grow without water. D) Plants can grow without air. Show Answer Correct Answer: A) Plants can grow without soil. 11. What are the two main gases that make up the atmosphere. A) Nitrogen and oxygen. B) Oxygen and methane. C) Carbon dioxide and helium. D) Methane and water vapor. Show Answer Correct Answer: A) Nitrogen and oxygen. 12. The solid form of fossil fuels is ..... A) Petroleum. B) Crude oil. C) Natural gas. D) Coal. Show Answer Correct Answer: D) Coal. 13. Which gases are greenhouse gases? A) Carbon dioxide. B) Methane. C) Nitrous oxide. D) All of the above. Show Answer Correct Answer: D) All of the above. 14. Greenhouse gases keep the Earth warm by ..... A) Reflecting the heat from the sun. B) Trapping the heat reflected by the Earth. C) Blocking the heat from the sun. D) Making more heat. Show Answer Correct Answer: B) Trapping the heat reflected by the Earth. 15. Which of the following natural events is NOT a source of carbon dioxide? A) Wildfire. B) Decomposing plants and animals. C) Volcanic eruption. D) Earthquake. Show Answer Correct Answer: D) Earthquake. 16. If humans didn't exist, would there still be a Greenhouse Effect? Why? A) No, the greenhouse effect is not natural. B) Yes, the greenhouse effect is natural and keeps Earth warm enough to live on. C) No, humans created the Greenhouse Effect. D) Yes, the greenhouse effect is natural and keeps Earth cool enough to live on. Show Answer Correct Answer: B) Yes, the greenhouse effect is natural and keeps Earth warm enough to live on. 17. What is the meaning of "to take in or soak up". A) Radiation. B) System. C) Absorb. D) Reflect. Show Answer Correct Answer: C) Absorb. 18. Which statement accurately compares the heating and cooling rates for water and land? A) Water heats up and cools down at a faster rate than land. B) Land heats up and cools down at a slower rate than water. C) Water heats up and cools down at a slower rate than land. D) Land and water heat up and cool down at the same rate. Show Answer Correct Answer: C) Water heats up and cools down at a slower rate than land. 19. Which is the atmospheric layer that most people spend their entire lives in? A) Troposphere. B) Mesosphere. C) Stratosphere. D) Thermosphere. Show Answer Correct Answer: A) Troposphere. 20. How has the percentage of carbon dioxide in the atmosphere changed over time? A) Increased. B) Decreased. C) Stayed the same. D) Does not exist. Show Answer Correct Answer: A) Increased. 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