Greenhouse effect, Proccess about gases enter on the earth and heating it, Natural effect, A phenomenon that takes part about the nature, Contamination, Substances toxics that damage the earth, Solar energy, Nature energy from the sun, Atmosphere, One Earth ‘s layer, Earth, The planet that humans live, Radiation, Energy that is transmite for waves, Gases, Substances that doesn’t have form but it can expand, Fossil fuels, Fuel made with petroleum or nature gases, Temperature, Measure for how something is hot or cold, Deforestation, Massive elimination for trees, Renewable energies, Energies that can renew progressively, Emissions, Release about gases to the atmosphere, Methane, Gas from the greenhouse effect for the human’s contamination, CO2, Gas nature so important for earth’s life.

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