1) What role does Earth's atmosphere play in relation to the sun's radiation? a) It acts as a barrier protecting us from harmful solar radiation. b) It reflects all sunlight away from the Earth. c) It increases the amount of harmful radiation reaching Earth’s surface. d) It cools the Earth by absorbing heat from the sun. 2) Why are carbon dioxide and methane called greenhouse gases? a) Because they are the only gases in the atmosphere. b) Because they reflect sunlight away from Earth’s surface. c) Because they trap heat from the sun, warming the Earth like a greenhouse. d) Because they block all sun rays from reaching Earth. 3) What would Earth be like without any greenhouse gases? a) It would become extremely hot and lifeless like Venus. b) It would be cold and deserted, similar to Mars. c) It would maintain the same temperature as now. d) The atmosphere would disappear entirely. 4) Approximately what percentage of Earth's atmosphere does CO2 make up? a) About 5%. b) Nearly 50%. c) More than 90%. d) Around 0.03%. 5) What human activities contribute significantly to greenhouse gas emissions? a) Using solar panels and wind turbines. b) Planting more trees and restoring forests. c) Using electric vehicles charged by renewable energy. d) Factories, cars, power plants, and food production burning fossil fuels. 6) How does the current rate of global warming compare to past warming events? a) The rate of warming is slower than during past ice ages. b) The Earth is warming much faster now than it did in the past. c) The warming rate has remained constant throughout history. d) Earth’s temperature has not changed recently. 7) How much has the global air temperature increased since the Industrial Revolution? a) About 1 degree Celsius. b) About 5 degrees Celsius. c) No significant change. d) About 10 degrees Celsius. 8) What percentage of recent temperature rise has occurred since 1975? a) Nearly all of the temperature rise. b) One-quarter of the temperature rise. c) Two-thirds of the temperature rise. d) None of the temperature rise. 9) What are some consequences of rising global temperatures mentioned in the video? a) Decreased sea levels and milder weather conditions. b) Higher sea levels, extreme weather events like hurricanes, and longer droughts. c) Increased snowfall and cooler global climate. d) More volcanic eruptions and earthquakes.

Climate Change Basics (Week 1)

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