Espanhol
Interpretação de Texto | Comprensión de LecturaUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritos
Segundo a carta de Lolita, o feriado será:
Questões do ENEM: Universidade Estadual do Pará
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FC7B66B4-DC FC771319-DC Espanhol
Interpretação de Texto | Comprensión de LecturaUniversidade Estadual do Pará · 2011FácilEntre para guardar nos favoritos
Marque a alternativa que afirma a ideia principal do texto.FC740785-DC Espanhol
Interpretação de Texto | Comprensión de LecturaUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritosDe acordo com a Carta, porque Lolita pede perdão?70B5A204-D8 Inglês
Interpretação de texto | Reading comprehensionUniversidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosWhen stars disappear…
One of the negative effects of industrialization on human activity and the environment is the production of excessive light. Most people do not consider the surplus of artificial light as a form of pollution because it is not permanent; all we must do is collectively turn out our lights to make it disappear. In reality, however, such a solution is unrealistic because our society needs artificial light to function. Light pollution is mainly caused by lighting systems that are misdirected, excessive, inefficient or unnecessary. The negative effects of light pollution on human activity are numerous. From an economic point of view, for example, the use of excessive lighting or unnecessary lighting constitutes a waste of energy that is costly to both the individual and to industries. On a larger scale, excessive lighting can have an impact on global climate change if the required electricity was generated by burning fossil fuels. Wildlife and plants are also affected. For example, nighttime lighting can confuse animals that migrate (like migratory birds), can modify predator-prey relationships, and can even alter competitiveness within the same species.It is even possible for entire ecosystems to be affected. In lakes, for example, zooplankton may stop feeding on algae if nighttime lighting is too strong. The result is excessive algae growth that eventually decomposes and causes an increase in bacterial activity. This leads to oxygen depletion in the lake, and many species of invertebrates and fish then die by asphyxiation. In astronomy, light pollution is a real and pressing problem. It diminishes the contrast between the dark sky and celestial sources of light, which makes it harder to see the stars. For professional astronomers, artificial light is undesirable because it interferes with the collection of data. This is why new observatories are built in isolated regions.Programs to reduce light pollution have been started up by several astronomical centres across Canada, including ASTROLab and the Mont-Mégantic Observatory, the David Dunlap Observatory in Toronto. A number of amateur astronomy associations are also involved in protecting our endangered legacy, the starry night sky. The focus of light pollution abatement programs is to change the habits of the general population, companies and urban planners so that less artificial light will be wasted or misdirected.Source: http://astro-canada.ca/_en/a3800.html
Tendo como base medidas de combate à poluição, pode-se afirmar que a única alternativa que corresponde integralmente à ideia do texto é:70AE1020-D8 Inglês
Interpretação de texto | Reading comprehensionUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritosWhen stars disappear…
One of the negative effects of industrialization on human activity and the environment is the production of excessive light. Most people do not consider the surplus of artificial light as a form of pollution because it is not permanent; all we must do is collectively turn out our lights to make it disappear. In reality, however, such a solution is unrealistic because our society needs artificial light to function. Light pollution is mainly caused by lighting systems that are misdirected, excessive, inefficient or unnecessary. The negative effects of light pollution on human activity are numerous. From an economic point of view, for example, the use of excessive lighting or unnecessary lighting constitutes a waste of energy that is costly to both the individual and to industries. On a larger scale, excessive lighting can have an impact on global climate change if the required electricity was generated by burning fossil fuels. Wildlife and plants are also affected. For example, nighttime lighting can confuse animals that migrate (like migratory birds), can modify predator-prey relationships, and can even alter competitiveness within the same species.It is even possible for entire ecosystems to be affected. In lakes, for example, zooplankton may stop feeding on algae if nighttime lighting is too strong. The result is excessive algae growth that eventually decomposes and causes an increase in bacterial activity. This leads to oxygen depletion in the lake, and many species of invertebrates and fish then die by asphyxiation. In astronomy, light pollution is a real and pressing problem. It diminishes the contrast between the dark sky and celestial sources of light, which makes it harder to see the stars. For professional astronomers, artificial light is undesirable because it interferes with the collection of data. This is why new observatories are built in isolated regions.Programs to reduce light pollution have been started up by several astronomical centres across Canada, including ASTROLab and the Mont-Mégantic Observatory, the David Dunlap Observatory in Toronto. A number of amateur astronomy associations are also involved in protecting our endangered legacy, the starry night sky. The focus of light pollution abatement programs is to change the habits of the general population, companies and urban planners so that less artificial light will be wasted or misdirected.Source: http://astro-canada.ca/_en/a3800.html
Com referência ao texto, pode-se concluir que a única opção correta relacionada ao tema é:70A943B4-D8 Inglês
Interpretação de texto | Reading comprehensionUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritosWhen stars disappear…
One of the negative effects of industrialization on human activity and the environment is the production of excessive light. Most people do not consider the surplus of artificial light as a form of pollution because it is not permanent; all we must do is collectively turn out our lights to make it disappear. In reality, however, such a solution is unrealistic because our society needs artificial light to function. Light pollution is mainly caused by lighting systems that are misdirected, excessive, inefficient or unnecessary. The negative effects of light pollution on human activity are numerous. From an economic point of view, for example, the use of excessive lighting or unnecessary lighting constitutes a waste of energy that is costly to both the individual and to industries. On a larger scale, excessive lighting can have an impact on global climate change if the required electricity was generated by burning fossil fuels. Wildlife and plants are also affected. For example, nighttime lighting can confuse animals that migrate (like migratory birds), can modify predator-prey relationships, and can even alter competitiveness within the same species.It is even possible for entire ecosystems to be affected. In lakes, for example, zooplankton may stop feeding on algae if nighttime lighting is too strong. The result is excessive algae growth that eventually decomposes and causes an increase in bacterial activity. This leads to oxygen depletion in the lake, and many species of invertebrates and fish then die by asphyxiation. In astronomy, light pollution is a real and pressing problem. It diminishes the contrast between the dark sky and celestial sources of light, which makes it harder to see the stars. For professional astronomers, artificial light is undesirable because it interferes with the collection of data. This is why new observatories are built in isolated regions.Programs to reduce light pollution have been started up by several astronomical centres across Canada, including ASTROLab and the Mont-Mégantic Observatory, the David Dunlap Observatory in Toronto. A number of amateur astronomy associations are also involved in protecting our endangered legacy, the starry night sky. The focus of light pollution abatement programs is to change the habits of the general population, companies and urban planners so that less artificial light will be wasted or misdirected.Source: http://astro-canada.ca/_en/a3800.html
Qual é a única alternativa mencionada, no texto, como um dos efeitos negativos do excesso de luz artificial no planeta?70A5378B-D8 Inglês
Interpretação de texto | Reading comprehensionUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritosWhen stars disappear…
One of the negative effects of industrialization on human activity and the environment is the production of excessive light. Most people do not consider the surplus of artificial light as a form of pollution because it is not permanent; all we must do is collectively turn out our lights to make it disappear. In reality, however, such a solution is unrealistic because our society needs artificial light to function. Light pollution is mainly caused by lighting systems that are misdirected, excessive, inefficient or unnecessary. The negative effects of light pollution on human activity are numerous. From an economic point of view, for example, the use of excessive lighting or unnecessary lighting constitutes a waste of energy that is costly to both the individual and to industries. On a larger scale, excessive lighting can have an impact on global climate change if the required electricity was generated by burning fossil fuels. Wildlife and plants are also affected. For example, nighttime lighting can confuse animals that migrate (like migratory birds), can modify predator-prey relationships, and can even alter competitiveness within the same species.It is even possible for entire ecosystems to be affected. In lakes, for example, zooplankton may stop feeding on algae if nighttime lighting is too strong. The result is excessive algae growth that eventually decomposes and causes an increase in bacterial activity. This leads to oxygen depletion in the lake, and many species of invertebrates and fish then die by asphyxiation. In astronomy, light pollution is a real and pressing problem. It diminishes the contrast between the dark sky and celestial sources of light, which makes it harder to see the stars. For professional astronomers, artificial light is undesirable because it interferes with the collection of data. This is why new observatories are built in isolated regions.Programs to reduce light pollution have been started up by several astronomical centres across Canada, including ASTROLab and the Mont-Mégantic Observatory, the David Dunlap Observatory in Toronto. A number of amateur astronomy associations are also involved in protecting our endangered legacy, the starry night sky. The focus of light pollution abatement programs is to change the habits of the general population, companies and urban planners so that less artificial light will be wasted or misdirected.Source: http://astro-canada.ca/_en/a3800.html
Analisando o texto, pode-se afirmar que a única alternativa correta relacionada ao tema é:70A1083E-D8 Sociologia
Karl Marx e as Classes SociaisUniversidade Estadual do Pará · 2011FácilEntre para guardar nos favoritosDentre os principais conceitos presentes nos considerados autores “clássicos” das Ciências Sociais (Durkheim, Marx e Weber), podemos considerar como correta a seguinte afirmação:708A4052-D8 Filosofia
Filosofia e a Grécia AntigaUniversidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosO VÉU E A ASAO VOOO ALVOde TALES: ÁGUAALMA(Herbert Emanuel, do Livro “Nada ou Quase Uma Arte”)O poema faz referências explícitas a um filósofo pré-socrático. Na história da filosofia, entende-se por pré-socráticos aqueles filósofos que antecederam a Sócrates. Entre as alternativas abaixo, assinale a que contém somente filósofos pré-socráticos
7086BAC8-D8 Filosofia
Filosofia e a Grécia AntigaUniversidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosA filosofia surge na Grécia por volta do século VI a.C. Mudanças sociais, políticas e econômicas favoreceram o seu surgimento. Dentre estas mudanças, pode-se mencionar:70826547-D8 Química
Cadeias Carbônicas: Características e Classificações do Átomo do Carbono, Tipos de Ligação e Hibridação. Tipos de Cadeias Carbônicas e Fórmulas. Séries: Homóloga, Isóloga e Heteróloga.Universidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosDevido à liberação de substâncias pela combustão do carvão, onde muitas dessas substâncias liberadas encontram-se os benzopirenos, também chamados de pireno, como mostrado abaixo, podemos afirmar sobre sua cadeia carbônica e sua fórmula molecular que é:
707E4441-D8 Química
Grandezas: massa, volume, mol, massa molar, constante de Avogadro e Estequiometria.Universidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosCerta indústria produz 12,8 kg de SO2 por hora. Com essa produção, há a liberação desse gás poluente que pode ser evitada usando-se calcário, o qual por decomposição fornece cal, que reage com o SO2 formando CaSO3, conforme as equações a seguir:CaCO3(s) → CaO(s) + CO2(g)CaO(s) + SO2(g) → CaSO3(s)
A partir dessas reações, qual a massa mínima (em quilograma), por dia, necessária para eliminar todo o SO2 formado? Para isso suponha que o rendimento é de 100% para as reações citadas.
707A2600-D8 Química
Cinética QuímicaUniversidade Estadual do Pará · 2011FácilEntre para guardar nos favoritosNo gráfico abaixo, é mostrada a variação de Energia (entalpia) x Andamento da Reação A.
Marque a opção correta:
70763630-D8 Química
Soluções e Substâncias InorgânicasUniversidade Estadual do Pará · 2011FácilEntre para guardar nos favoritosNa presença de H2S ou de qualquer outra substância que contenha enxofre, a prata sofre um enegrecimento, devido à formação de uma camada superficial de Ag2S.Sobre a nomenclatura para o Ag2S, temos como nome o:70720E64-D8 Química
Soluções e Substâncias InorgânicasUniversidade Estadual do Pará · 2011FácilEntre para guardar nos favoritosOs nomes dos ácidos HNO2, HclO e H3BO3 são, respectivamente:706D3D5D-D8 Química
Estudo da matéria: substâncias, misturas, processos de separação.Universidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosAs ligas metálicas são formadas pela união de dois ou mais metais, ou ainda, por uma união entre metais e não metais. Sabendo dessa informação, a medalha que tradicionalmente é conferida ao terceiro colocado, em uma competição, é de bronze e, neste caso, podemos afirmar que o bronze é706507CC-D8 Matemática
PotênciaUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritosNa expressão
o valor de x é:
7060D682-D8 Matemática
Equação de 2º Grau e Problemas de 2º GrauUniversidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosAo simplificar a expressão
obtêm-se:
705D80A4-D8 Matemática
Geometria PlanaUniversidade Estadual do Pará · 2011MédioEntre para guardar nos favoritosNa figura, observa-se o quadrado ABCD, com centro em O. Se AD = x, pode-se afirmar que a área da região sombreada é:
70566BD6-D8 Matemática
Seno, Cosseno e TangenteUniversidade Estadual do Pará · 2011DifícilEntre para guardar nos favoritosSe o sem(x-5)sec(2x+20) – 1 = 0, então o valor de x é: