Online Activities, Educational Games, Quizzes, Crossword Maker

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Main Global Warming

1. What is the Earth%27s average temperature?
carbon dioxide, nitrous oxide, nitrogen, tetrafluoromethane,
2. Air consists mainly of:
about 5 °C, about -3 °C distant learning , about 15 °C, about 23 °C,
3. # is the most common greenhouse gas emitted from human activities.
TRUE, FALSE, ,
4. The greenhouse effect is the same thing as global warming.
nitrogen, oxygen, carbon dioxide, methane,
5. How much carbon dioxide is in Earth’s atmosphere today?
20%25 or greater, 10%25 to 20%25, 1%25 to 10%25, less than 1%25,