greenhouse gases - Carbon dioxide and methane, climate change - A change in a region's weather, fossil fuels - Made from the remains of living organisms over millions of years, increase - global warming will _____________ global temperatures, weather - More frequent hurricanes and extreme _________ events, El Nino - naturally occurs in the Pacific when waters are warmer, high - Evidence of of global warming includes record ________ temperature, ice caps - Since the 1970s Sea Ice or ________ __________ have been melting., human - ___________ activities and natural processes contribute to a rise in global temperatures, chemical reaction - Concrete manufacturing leads to global warming because of a ___________ _____________ that happens when it solidifies., industry - manufacturing goods and trades that raises the carbon dioxide level, transportation - moving people or items from one place to another that contributes to global warming., electricity - We burn coal to generate ______________ for our houses., agriculture - Raising livestock and dealing with their care and waste contributes to greenhouse gases., Deforestation - Cutting down trees that would be able to absorb carbon dioxide., methane - A greenhouse gas produced mostly by livestock., Pacific - El Nino and La Nina happen in the __________ Ocean., photosynthesis - Deforestation puts more carbon dioxide back in the atmosphere because there won't be as much _____________________ to remove the carbon dioxide.., volcanoes - _____________ can contribute to an initial cooling by blocking out the sun with ash., meteors - ______________ can contribute to an initial cooling of an area by blocking out sunlight with dust and dirt.,

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