This quiz works best with JavaScript enabled. Home > Greenhouse > Cultivation Techniques > Greenhouse – Quiz 21 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Greenhouse Quiz 21 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Global warming is best described as A) The temperature of the earth observed over a period of time. B) The average rise in temperature over a period of time. C) The warming of the earth at by land breezes. D) The cooling of the atmosphere by specific substances. Show Answer Correct Answer: B) The average rise in temperature over a period of time. 2. In what form is radiation emitted from the earth's surface back into the atmosphere? A) As light. B) As greenhouse gases. C) As gamma rays. D) As heat. Show Answer Correct Answer: D) As heat. 3. In "Child on Top of the Greenhouse, " which words best help you feel the wind? A) "crackling" and "glass". B) "flashing" and "sunlight". C) "pointing" and "shouting". D) "plunging" and "billowing". Show Answer Correct Answer: D) "plunging" and "billowing". 4. Do we need greenhouse gases on Earth? A) Yes - they keep the Earth warm. B) Yes - they keep all the gases on our planet. C) No - they only cause terrible climate change. D) No - they only block some of the Sun's rays. Show Answer Correct Answer: A) Yes - they keep the Earth warm. 5. A group of components (parts) that work together is a ..... A) Sphere. B) System. C) Habitat. D) Cycle. Show Answer Correct Answer: B) System. 6. ..... is the first greenhouse gas demonstrated to be increasing in atmospheric concentration. A) Water vapor. B) Methane. C) Neon. D) Carbon dioxide. Show Answer Correct Answer: D) Carbon dioxide. 7. Which one of these is NOT a direct result of acid rain? A) Damage to monuments. B) Dying fish. C) Spread of disease. D) Weakened trees. Show Answer Correct Answer: C) Spread of disease. 8. Most abundant greenhouse gas A) CO2. B) Methane. C) Nitrous oxide. D) Water vapor. Show Answer Correct Answer: D) Water vapor. 9. What are the two most common greenhouse gases? A) Water Vapor (H2O) and Methane (CH4). B) Carbon Dioxide CO2 and Methane (CH4). C) Water Vapor (H2O) and Carbon Dioxide CO2. D) Water Vapor (H2O) and Nitrous oxide (N2O). Show Answer Correct Answer: C) Water Vapor (H2O) and Carbon Dioxide CO2. 10. Carbon dioxide is released in the atmosphere MAINLY by ..... A) Burning fossil fuels like coal and oil. B) Bacteria in soil and ocean. C) Cows. D) Growing rice. Show Answer Correct Answer: A) Burning fossil fuels like coal and oil. 11. Green House gases A) Absorb the sun's radiation and trap heat. B) Are good for our health. C) Absorb gravity and keep us attached to Earth. D) Expulse radiation to the sun and prevent us from getting to warm. Show Answer Correct Answer: A) Absorb the sun's radiation and trap heat. 12. Island nations like the Maldives are concerned most with which effect of global climate change? A) Increased temperatures. B) Rising sea levels. C) Impact on forestry. D) Impact on coral reefs. Show Answer Correct Answer: B) Rising sea levels. 13. Which 2 greenhouse gases contribute the MOST to global warming of Earth? A) N2O and H2O. B) O3 and H2O. C) CO2 and CH4. D) None of above. Show Answer Correct Answer: C) CO2 and CH4. 14. About 30% of the sun's incoming energy never reaches Earth because it is ..... A) Absorbed by the ocean. B) Trapped by the gravitational pull between the moon and the Earth. C) Reflected back into space. D) Destroyed by the ozone layer. Show Answer Correct Answer: C) Reflected back into space. 15. What is the main idea of this text? A) Nitrogen is a gas that can be found in all living things, including humans. Oxygen is a gas humans breathe in to survive. B) A greenhouse is a building with glass walls and a glass roof that let in sunlight and trap in heat. Plants can be grown in greenhouses all year long because they stay warm throughout the year. C) Greenhouse gases trap heat in our atmosphere, just like the glass walls and roofs of greenhouses. An increase of greenhouse gases in the atmosphere has caused our Earth to warm up very quickly. D) Humans have been adding more and more carbon dioxide to the atmosphere. Most scientists believe that this increase of carbon dioxide caused by human activities is the main cause of global warming. Show Answer Correct Answer: C) Greenhouse gases trap heat in our atmosphere, just like the glass walls and roofs of greenhouses. An increase of greenhouse gases in the atmosphere has caused our Earth to warm up very quickly. 16. Greenhouse gas emissions remain in the ..... for a very ..... time ..... A) Ocean; short. B) Ocean; long. C) Atmosphere; short. D) Atmosphere; long. Show Answer Correct Answer: D) Atmosphere; long. 17. What is the United Nations trying to control? A) Population rise. B) Climate change. C) Temperature rise. D) All of the above. Show Answer Correct Answer: D) All of the above. 18. What are the effects of enhanced greenhouse effect A) The Earth's temperature will change. B) The people will faint. C) People's eyes will be well rested. D) Swimming pools will be dried up. Show Answer Correct Answer: A) The Earth's temperature will change. 19. The temperature is hot. A) Polar. B) Temperate. C) Tropical. D) None of above. Show Answer Correct Answer: C) Tropical. 20. Sulphur Dioxide can remain in our atmosphere for ..... A) 3 Years. B) 20 Years. C) 10 Years. D) 2 Years. Show Answer Correct Answer: D) 2 Years. ← PreviousNext →Related QuizzesGreenhouse QuizzesGreenhouse Quiz 1Greenhouse Quiz 2Greenhouse Quiz 3Greenhouse Quiz 4Greenhouse Quiz 5Greenhouse Quiz 6Greenhouse Quiz 7Greenhouse Quiz 8Greenhouse Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books