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Unit 2 (air pollution (Air Pollution can come from different places such…
Unit 2
air pollution
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Burning . fossil fuels releases poisonous gases, such as CO2
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Cows release methane, which is a greenhouse gases
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Greenhouse Effect
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earth warms up and cools down naturally, but to much gasses cause global warming
green house gasses such as CO2 and methane, by humans are the main cause of global warming
Natural Resources
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there are many natural Resources such as air, water, soil
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Soil
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Soil contains humus (dead) and rocks, which help plants grow
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