Fundamental 2
Transcript of Fundamental 2
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AGENDA 21 NAS ESCOLAS DE TIMÓTEO
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Água É uma substância química cujas moléculas são formadas por
dois átomos de hidrogênio e um de oxigênio (H2O).
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Estados da água
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A água é um Recurso Renovável ou Não-Renovável?
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Onde encontramos água?
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Mares e oceanos
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•Devido as poluições de rios e lagos– Maior Uso das Águas subterrâneas– Poluídas– Químicos (pesticidas)– Cadeia alimentar
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Consumo Humano Piscicultura
Importância da água
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Transporte (Navegação Marítima - Navegação Fluvial)
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Hidroelétrica (energia)
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Extração de minerais (sal/petróleo)
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Turismo Higiene
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Pesca Produção Agrícola (Irrigação)
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Setor Industrial
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l Porque está faltando água?l Intensa Exploração, Uso Inadequado X Pouca reposição
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Aquecimento Global
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Países PobresPopulação percorre muitos Km para obter água
l Má qualidadePaíses RicosTécnicas modernas e caras para obtenção de água
l Perfuração de Poçosl Dessalinização das águas marinhas
A água nos países
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A água nos países
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CuriosidadesMais de 1,4 bilhão de pessoas no mundo vivem sem acesso à agua potável.
O Brasil possui um dos patrimônios hídricos mais importantes do planeta
Cerca de 12% da água doce superficial do mundo
O Brasil detém 60% da bacia amazônica
A região amazônica detém 73,6% dos recursos hídricos superficiais nacionais e apenas 5% da população brasileira.
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Consequências
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Antes Depois
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Desmatamento de nascente Poluição dos rios
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Lixo na água
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O que podemos fazer?l Tratamentos dos Esgotos Urbanos e Industriais
l Controle da utilização de Pesticidasl Política de Conscientização (Agenda 21)
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Obrigado!