What does the word “ecology” mean?, Study of space, Study of relationships between living things and their environment, Study of money, Study of sports, Which gas contributes most to the greenhouse effect?, Oxygen, Nitrogen, Helium, Carbon dioxide, Which organization is well known for protecting the environment?, Greenpeace, ecoprograms, NASA, FIFA, What does “recycling” mean?, Throwing waste into nature, Burning plastic, Reusing and processing waste materials, Burying trash, Which of the following is a renewable energy source?, Paris Agreement, Treaty of Versailles, Dayton Agreement, Kyoto Protocol, What can we do to reduce plastic waste?, Avoid sorting waste, Throw trash in rivers, Buy more plastic bottles, Use reusable bags, Why are forests important?, They produce oxygen, They are home to many animals, They help regulate climate, All of the above, What does “biodiversity” mean?, Different species of plants and animals on Earth, One type of plant, Only domestic animals, Climate change, What is the main goal of Earth Day?, Celebrate sports, Raise awareness about environmental protection, Travel by plane, selling plants, Which activity reduces air pollution?, Driving alone every day, Burning trash, Riding a bicycle, Cutting trees, What is global warming?, Increase in Earth’s average temperature, Cooling of the Earth, A new season, A type of storm, Which material takes the longest to decompose?, Paper, plastic bottle, Banana peel, Cotton cloth, What does “reduce” mean in the 3Rs (Reduce, Reuse, Recycle)?, Use more, Use less and avoid waste, Throw away, Burn materials, Which energy source does NOT pollute the air?, Solar energy, Coal, diesel, oil, What is deforestation?, Planting trees, Recycling paper, Protecting forests, Cutting down large numbers of trees, What is composting?, Throwing food in the trash, Burning leaves, Turning organic waste into natural fertilizer, Freezing food, Which of these helps fight climate change?, Planting trees, Using more plastic, Wasting electricity, Littering, What is an example of renewable energy?, Natural gas, Coal, Wind power, oil, What happens when ice caps melt?, Deserts disappear, Sea levels rise, Forests grow faster, Air becomes cleaner, What can students do to protect the environment?, Waste paper, Use more plastic, Turn off lights and recycle, Litter in parks.

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