Ecología y Medio Ambiente
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4. ¿Cuáles son las especificaciones de calidad que debe de tener el agua para uso y consumo
humano?
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5.
Indica un método para tratamiento de aguas negras.
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Investiga algunas de las acciones que podemos realizar para reducir los gases de invernadero.
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Revisión: _____________________________________________________
Observaciones:________________________________________________
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