1) 1. According to the text, what is the main cause of climate change? a) Decrease in greenhouse gases b) Increase in greenhouse gases c) Decrease in oxygen levels d) Increase in oxygen levels 2) 2. What effect does the increase in greenhouse gases have on the Earth? a) Cooling effect b) Creating more rain c) Decreasing temperatures d) Trapping heat from the sun 3) 3. How do greenhouse gases contribute to climate change? a) They reflect heat away from Earth b) They block sunlight from reaching Earth c) They absorb heat from the sun d) They increase oxygen levels in the atmosphere 4) 4. What is the term used to describe the trapping of heat from the sun by greenhouse gases? a) Greenhouse effect b) Global cooling c) Solar eclipse d) Sunlight absorption

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