Todas as questões do ENEM

A figura ilustra duas boias acopladas a braços articulados numa usina de ondas para geração de eletricidade.

Usina de ondas do mar no Porto de Pecém. Ceará — Brasil.

Disponível em: www.pensamentoverde.com.br.

Acesso em: 16 set. 2019.

A energia elétrica produzida nessa usina é convertida a partir do(a)

I - Trata-se da história de um homem que decide ganhar dinheiro com a captura de escravos fugidos, para poder sustentar seu filho e, assim, evitar que o mesmo seja entregue à roda dos enjeitados.

II- O conto narra uma história cujo teor dramático advém do fato de que a salvação de uma criança implica a morte de outra, a que está no ventre da escrava capturada, demonstrando ironicamente que a lei do mais forte rege a vida.

III- Adotando uma forma de narrar pautada pela objetividade, ironia e frieza, através da qual descreve os instrumentos usados para castigar escravos e o ofício de capturar escravos fugidos, o narrador provoca mais impacto sobre o leitor do que se fizesse uso de um discurso sentimentalista.

Um casal cujo marido pertence ao grupo sanguíneo tipo B e a mulher pertence ao tipo A tiveram um filho de sangue tipo O. Após uma suposta traição, o casal separou-se e o pai, desconfiado da paternidade da criança, recorreu à justiça para saber se a criança era seu filho biológico. Sabendo que o suposto amante da esposa pertencia ao grupo sanguíneo AB, é CORRETO afirmar que: 

Entre os alimentos que possuem propriedades funcionais estão incluídos aqueles que contêm probióticos, como os lactobacilos vivos.

A ação desses microrganismos é de

    ‘English is the global language.’ – A headline of this kind must have appeared in a thousand newspapers and magazines in recent years. ‘English Rules’ is an actual example, presenting to the world an uncomplicated scenario suggesting the universality of the language’s spread and the likelihood of its continuation. (…)

    These are the kinds of statement which seem so obvious that most people would give them hardly a second thought. Of course English is a global language, they would say. You hear it on television spoken by politicians from all over the world. Wherever you travel, you see English signs and advertisements. Whenever you enter a hotel or restaurant in a foreign city, they will understand English, and there will be an English menu. (…)

    But English is news. The language continues to make news daily in many countries. And the headline isn’t stating the obvious. For what does it mean, exactly? Is it saying that everyone in the world speaks English? This is certainly not true, as we shall see. Is it saying, then, that every country in the world recognizes English as an offcial language? This is not true either. So what does it mean to say that a language is a global language? Why is English the language which is usually cited in this connection? How did the situation arise? And could it change? Or is it the case that, once a language becomes a global language, it is there forever?

    These are fascinating questions to explore, whether your frst language is English or not. If English is your mother tongue, you may have mixed feelings about the way English is spreading around the world. You may feel pride, that your language is the one which has been so successful; but your pride may be tinged with concern, when you realize that people in other countries may not want to use the language in the same way that you do, and are changing it to suit themselves. We are all sensitive to the way other people use (it is often said, abuse) ‘our’ language. Deeply held feelings of ownership begin to be questioned. Indeed, if there is one predictable consequence of a language becoming a global language, it is that nobody owns it any more. Or rather, everyone who has learned it now owns it – ‘has a share in it’ might be more accurate – and has the right to use it in the way they want. This fact alone makes many people feel uncomfortable, even vaguely resentful. ‘Look what the Americans have done to English’ is a not uncommon comment found in the letter-columns of the British press.

    But similar comments can be heard in the USA when people encounter the sometimes striking variations in English which are emerging all over the world. And if English is not your mother tongue, you may still have mixed feelings about it. You may be strongly motivated to learn it, because you know it will put you in touch with more people than any other language; but at the same time you know it will take a great deal of effort to master it, and you may begrudge that effort. Having made progress, you will feel pride in your achievement, and savour the communicative power you have at your disposal, but may none the less feel that mother-tongue speakers of English have an unfair advantage over you. (…)

    These feelings are natural, and would arise whichever language emerged as a global language. They are feelings which give rise to fears, whether real or imaginary, and fears lead to conflict. Language is always in the news, and the nearer a language moves to becoming a global language, the more newsworthy it is. So how does a language come to achieve global status?

A epiderme apresenta melanócitos que são células capazes de produzir melanina, responsável pela pigmentação da pele além de proteção contra a radiação solar. Analise a figura a seguir. 

Disponível em: https://cursinhotriu.com.br/wp-content/uploads/material/biologia/TR/listas/Lista%2014%20- %20Tecido%20epitelial%20e%20sistema%20locomotor.pdf. Acesso em: 10 out. 2023. Adaptado.

Considerando a figura e o assunto abordado, assinale a alternativa CORRETA. 

Em 1798, o inglês Edward Jenner publicou, em livro, os resultados de seus experimentos, demonstrando que inocular o líquido do pus das feridas da varíola bovina — doença muito branda em seres humanos — em uma pessoa normal e sadia protegia essa pessoa contra a varíola humana. Trata-se de um método eficaz que foi concebido para prevenir uma doença infecciosa.

A qual importante descoberta o cientista chegou com seus experimentos?

Os aspectos embrionários, a reprodução e a fisiologia comparada são requisitos para diferenciar grupos de animais. Em relação a esses aspectos e os invertebrados, assinale a alternativa CORRETA. 

    ‘English is the global language.’ – A headline of this kind must have appeared in a thousand newspapers and magazines in recent years. ‘English Rules’ is an actual example, presenting to the world an uncomplicated scenario suggesting the universality of the language’s spread and the likelihood of its continuation. (…)

    These are the kinds of statement which seem so obvious that most people would give them hardly a second thought. Of course English is a global language, they would say. You hear it on television spoken by politicians from all over the world. Wherever you travel, you see English signs and advertisements. Whenever you enter a hotel or restaurant in a foreign city, they will understand English, and there will be an English menu. (…)

    But English is news. The language continues to make news daily in many countries. And the headline isn’t stating the obvious. For what does it mean, exactly? Is it saying that everyone in the world speaks English? This is certainly not true, as we shall see. Is it saying, then, that every country in the world recognizes English as an offcial language? This is not true either. So what does it mean to say that a language is a global language? Why is English the language which is usually cited in this connection? How did the situation arise? And could it change? Or is it the case that, once a language becomes a global language, it is there forever?

    These are fascinating questions to explore, whether your frst language is English or not. If English is your mother tongue, you may have mixed feelings about the way English is spreading around the world. You may feel pride, that your language is the one which has been so successful; but your pride may be tinged with concern, when you realize that people in other countries may not want to use the language in the same way that you do, and are changing it to suit themselves. We are all sensitive to the way other people use (it is often said, abuse) ‘our’ language. Deeply held feelings of ownership begin to be questioned. Indeed, if there is one predictable consequence of a language becoming a global language, it is that nobody owns it any more. Or rather, everyone who has learned it now owns it – ‘has a share in it’ might be more accurate – and has the right to use it in the way they want. This fact alone makes many people feel uncomfortable, even vaguely resentful. ‘Look what the Americans have done to English’ is a not uncommon comment found in the letter-columns of the British press.

    But similar comments can be heard in the USA when people encounter the sometimes striking variations in English which are emerging all over the world. And if English is not your mother tongue, you may still have mixed feelings about it. You may be strongly motivated to learn it, because you know it will put you in touch with more people than any other language; but at the same time you know it will take a great deal of effort to master it, and you may begrudge that effort. Having made progress, you will feel pride in your achievement, and savour the communicative power you have at your disposal, but may none the less feel that mother-tongue speakers of English have an unfair advantage over you. (…)

    These feelings are natural, and would arise whichever language emerged as a global language. They are feelings which give rise to fears, whether real or imaginary, and fears lead to conflict. Language is always in the news, and the nearer a language moves to becoming a global language, the more newsworthy it is. So how does a language come to achieve global status?

O aluguel de patinetes nas grandes cidades tem sido frequente, principalmente nos locais onde o trânsito de veículos é bastante intenso. Os patinetes possuem duas rodas, são movidos a eletricidade e esse serviço pode ser acessado por meio de aplicativos nos smartphones.

Um argumento favorável ao uso desse meio de transporte é que ele

A filosofia grega se expandiu para além das fronteiras do mundo helênico e influenciou outros povos e culturas. Com o cristianismo não foi diferente e, aos poucos, a filosofia foi absorvida. Conforme Chalita, um dos motivos dessa absorção foi: [...] a necessidade de organizar os ensinamentos cristãos, de reunir os fatos e conceitos do cristianismo sob a forma de uma doutrina e elaborar uma teologia rigorosa. (CHALITA, G. Vivendo a Filosofia. São Paulo: Ática, 2006, p. 94.)

Uma das características da patrística é a busca da conciliação entre a fé e a filosofia, e Agostinho de Hipona, ou Santo Agostinho (354 d.C. – 430 d.C.), influenciado pelo neoplatonismo, tornou-se uma referência para a filosofia cristã. Em relação ao desenvolvimento das ciências naturais, porém, o pensamento de Agostinho não deu grande impulso uma vez que sua filosofia – tal como a do mestre Platão – não adotava os fenômenos naturais como objeto de reflexão.

Com base nos textos acima e em seus conhecimentos sobre a obra de Agostinho de Hipona, assinale a alternativa INCORRETA.

O Cerrado tipicamente apresenta uma estação chuvosa e uma estação seca que se alternam. Essa condição climática compromete o abastecimento hídrico durante a estação seca, influenciando diretamente a vegetação presente nesse bioma. As árvores, por exemplo, possuem certas características adaptativas para essa condição sem as quais não sobreviveriam.

Uma dessas características é o(a)

    ‘English is the global language.’ – A headline of this kind must have appeared in a thousand newspapers and magazines in recent years. ‘English Rules’ is an actual example, presenting to the world an uncomplicated scenario suggesting the universality of the language’s spread and the likelihood of its continuation. (…)

    These are the kinds of statement which seem so obvious that most people would give them hardly a second thought. Of course English is a global language, they would say. You hear it on television spoken by politicians from all over the world. Wherever you travel, you see English signs and advertisements. Whenever you enter a hotel or restaurant in a foreign city, they will understand English, and there will be an English menu. (…)

    But English is news. The language continues to make news daily in many countries. And the headline isn’t stating the obvious. For what does it mean, exactly? Is it saying that everyone in the world speaks English? This is certainly not true, as we shall see. Is it saying, then, that every country in the world recognizes English as an offcial language? This is not true either. So what does it mean to say that a language is a global language? Why is English the language which is usually cited in this connection? How did the situation arise? And could it change? Or is it the case that, once a language becomes a global language, it is there forever?

    These are fascinating questions to explore, whether your frst language is English or not. If English is your mother tongue, you may have mixed feelings about the way English is spreading around the world. You may feel pride, that your language is the one which has been so successful; but your pride may be tinged with concern, when you realize that people in other countries may not want to use the language in the same way that you do, and are changing it to suit themselves. We are all sensitive to the way other people use (it is often said, abuse) ‘our’ language. Deeply held feelings of ownership begin to be questioned. Indeed, if there is one predictable consequence of a language becoming a global language, it is that nobody owns it any more. Or rather, everyone who has learned it now owns it – ‘has a share in it’ might be more accurate – and has the right to use it in the way they want. This fact alone makes many people feel uncomfortable, even vaguely resentful. ‘Look what the Americans have done to English’ is a not uncommon comment found in the letter-columns of the British press.

    But similar comments can be heard in the USA when people encounter the sometimes striking variations in English which are emerging all over the world. And if English is not your mother tongue, you may still have mixed feelings about it. You may be strongly motivated to learn it, because you know it will put you in touch with more people than any other language; but at the same time you know it will take a great deal of effort to master it, and you may begrudge that effort. Having made progress, you will feel pride in your achievement, and savour the communicative power you have at your disposal, but may none the less feel that mother-tongue speakers of English have an unfair advantage over you. (…)

    These feelings are natural, and would arise whichever language emerged as a global language. They are feelings which give rise to fears, whether real or imaginary, and fears lead to conflict. Language is always in the news, and the nearer a language moves to becoming a global language, the more newsworthy it is. So how does a language come to achieve global status?

A decomposição da biomassa presente em aterros sanitários produz um combustível, ainda pouco aproveitado, que pode ser queimado para a produção de energia.

Esse combustível é o

Sobras de alimentos são resíduos orgânicos compostos por material biológico e, por isso, ricos em nutrientes que podem retornar para a natureza, completando o ciclo da matéria. Essa ciclagem pode ser feita até mesmo em casa, pelo processo de compostagem, e o produto gerado por essa técnica pode ser utilizado como adubo em hortas caseiras.

A utilização desse adubo fortalece as plantas porque

Às margens do Rio São Francisco, na cidade de Cabrobó, no sertão pernambucano, desenvolve-se um processo de desertificação. Na área, o arroz era cultivado há cerca de 20 anos através da técnica de irrigação por inundação.

Disponível em: http://g1.globo.com. Acesso em: 24 jul. 2015 (adaptado).

A técnica contribuiu para o desenvolvimento do problema porque causou o(a)