Todas as questões do ENEM

Meu caro amigo, me perdoe, por favor

Se eu não lhe faço uma visita

Mas como agora apareceu um portador

Mando notícias nessa fita

Aqui na terra tão jogando futebol

Tem muito samba, muito choro e rock'n'roll

Uns dias chove, noutros dias bate o sol

Mas o que eu quero é lhe dizer que a coisa

 [aqui tá preta

Muita mutreta pra levar a situação

Que a gente vai levando de teimoso e de

 [pirraça

E a gente vai tomando que também sem a

 [cachaça

Ninguém segura esse rojão

Meu caro amigo, eu não pretendo provocar

Nem atiçar suas saudades

Mas acontece que não posso me furtar

A lhe contar as novidades

É pirueta pra cavar o ganha-pão

Que a gente vai cavando só de birra,

 [só de sarro

E a gente vai fumando que, também,

 [sem um cigarro

Ninguém segura esse rojão

Meu caro amigo, eu quis até telefonar

Mas a tarifa não tem graça

Eu ando aflito pra fazer você ficar

A par de tudo que se passa

Muita careta pra engolir a transação

Que a gente tá engolindo cada sapo no

 [caminho

E a gente vai se amando que, também,

 [sem um carinho

Ninguém segura esse rojão

Meu caro amigo, eu bem queria lhe

 [escrever

Mas o correio andou arisco

A variação linguística pode revelar muitas informações acerca de quem a está utilizando. Valendo-se desse fenômeno, o autor do texto 2 apresenta o eu lírico como alguém que não domina a norma culta brasileira, por misturar traços da linguagem caipira com a fala de imigrantes italianos de conhecidos bairros paulistas para figurativizar o personagem. Atente para o que se diz a seguir sobre variação linguística:

I. As línguas têm formas variáveis e há usos de determinada variedade em uma sociedade formada por uma heterogeneidade de falantes advindos de lugares distintos, a exemplo de São Paulo.

II. Os aspectos mais perceptíveis da variação linguística são a pronúncia e o vocabulário, mas pode-se apontar, no texto 2, variações em todos os níveis da língua.

III. O fenômeno da variação é complexo e o princípio de adequação à identidade de quem utiliza, a situação comunicativa e outros fatores podem intervir.

É correto o que se afirma em

Sobre a explicação dada por Oswald de Andrade para o não emprego da ênclise na fala do português do Brasil, é correto afirmar que o autor

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

The verbs in “...ends up in countries considered to have inadequate waste management” (lines 24-25) are, respectively,

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

In the sentence “Moreover, once plastic waste is shipped overseas, he said, data is often not recorded at all” (lines 75-77), the underlined verbs are, respectively,

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

The words “recycling” (line 3), “littering” (line 40), and “being” (line 55) are respectively used as

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

In “Nonetheless, Dr. Walker, who was not involved in the study, said it could offer a more accurate accounting of plastic pollution...” (lines 78- 81), there is an example of

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

Considering the information provided in the text, it is clear that of the total plastic waste in the United States

Americans May Add Five Times More Plastic to the Oceans Than Thought

The United States is using more

plastic than ever, and waste exported for

recycling is often mishandled, according

to a new study.

The United States contribution

to coastal plastic pollution worldwide is

significantly larger than previously

thought, possibly by as much as five

times, according to a study published

Friday. The research, published in Science

Advances, is the sequel to a 2015 paper

by the same authors. Two factors

contributed to the sharp increase:

Americans are using more plastic than

ever and the current study included

pollution generated by United States

exports of plastic waste, while the earlier

one did not.

The United States, which does

not have sufficient infrastructure to

handle its recycling demands at home,

exports about half of its recyclable waste.

Of the total exported, about 88 percent

ends up in countries considered to have

inadequate waste management.

“When you consider how much

of our plastic waste isn’t actually

recyclable because it is low-value,

contaminated or difficult to process, it’s

not surprising that a lot of it ends up

polluting the environment,” said the

study’s lead author, Kara Lavender Law,

research professor of oceanography at

Sea Education Association, in a

statement.

The study estimates that in

2016, the United States contributed

between 1.1 and 2.2 million metric tons of

plastic waste to the oceans through a

combination of littering, dumping and 

A imagem mostra duas fotografias da Lua, obtidas em uma mesma localidade.

(www.zenite.nu)

O intervalo de tempo mínimo entre os instantes em que as fotos foram obtidas é de, aproximadamente,

Um asteroide com tamanho semelhante ao de um pequeno automóvel passou perto da Terra no último domingo. Chamado de 2020QG, ele esteve a 2 950 quilômetros do planeta, uma distância pequena em termos astronômicos.

(O Estado de S.Paulo, 20.08.2020. Adaptado.)

Considere que a constante de gravitação universal é igual a 6,7 × 10–11 N·m2 /kg2 , que a massa da Terra é 6,0 × 1024 kg e que a menor distância entre o centro do asteroide e o centro da Terra foi, aproximadamente, 1,0 × 107 m (resultado da soma do raio da Terra com a distância do asteroide ao planeta). Uma vez que o asteroide não foi capturado gravitacionalmente pela Terra, sua velocidade, ao passar pelo ponto mais próximo da Terra, era de, no mínimo,

Uma bola de massa 60 g é solta, a partir do repouso, de uma altura igual a 80 cm. Após colidir com o solo, a bola sobe verticalmente até a altura de 45 cm. Considerando-se a aceleração gravitacional igual a 10 m/s² e desprezando-se a resistência do ar, a intensidade do impulso recebido pela bola na colisão com o solo foi de

Um bloco de massa 100 g, apoiado sobre uma superfície horizontal sem atrito, está preso à extremidade de uma mola de constante elástica 1,6 N/m, que tem a outra extremidade presa a um suporte vertical fixo. O bloco realiza movimento harmônico simples, e sua posição x é dada pela equação x = 0,20 cos (4,0·t + 0,80). A máxima aceleração a que o bloco está sujeito nesse movimento tem módulo igual a

Um motorista, que conduz seu caminhão com velocidade constante de 25 m/s (90 km/h) por uma estrada retilínea, plana e horizontal, aciona os freios quando percebe um ônibus a sua frente deslocando-se lentamente no mesmo sentido, com velocidade constante de 5 m/s (18 km/h). Supondo-se que a distância entre o caminhão e o ônibus no instante em que o motorista do caminhão aciona os freios é de 80 m, que o ônibus não altera sua velocidade e que não há mudança nas direções dos movimentos de ambos os veículos, o módulo da aceleração mínima, admitida constante, que deve ser imprimida ao caminhão para evitar a colisão é

O gráfico mostra a variação da quantidade de carga elétrica armazenada em um capacitor em função do tempo, quando ligado a certo circuito elétrico.

O coeficiente angular da reta tangente a um ponto correspondente a um instante qualquer da curva representa

Read the text to answer question.

     The formula for calculating people’s environmental footprint is simple, but widely misunderstood: Impact = Population x Affluence x Technology (I = PAT). The global rate of consumption growth, before the pandemic, was 3% a year. Population growth is 1%. Some people assume this means that the rise in population bears one-third of the responsibility for increased consumption. But population growth is overwhelmingly concentrated among the world’s poorest people, who have scarcely any A or T to multiply their P.

     Yet it is widely used as a blanket explanation of environment breakdown. Panic about population growth enables the people most responsible for the impacts of rising consumption (the affluent) to blame those who are least responsible.

(George Monbiot. www.theguardian.com, 26.08.2020. Adapted.)

The text states that

(nytimes.com)

Shimmering white and gracefully statuesque, the Mount Washington Hotel is a granite fortress, a manmade anomaly among the raw wilderness of the surrounding White Mountains in remote northern New Hampshire, U.S. Even to this day, the hotel is geographically secured by 800,000 acres of the White Mountain National Forest around it. This was the main reason why the Hotel was chosen for a World War Two meeting – a meeting that shaped present-day global economic policies.

(Linda Laban. www.bbc.com, 26.08.2020. Adapted.)

The term “this”, which introduces the last sentence in the text, refers to the fact that the Mount Washington Hotel

The American embassy escaped the blast in Beirut’s port unscathed. Many Western countries either have missions in the city centre or diplomats who live in the area. The wife of the Dutch ambassador was killed, as was a German diplomat. But America’s embassy sits in the mountain village of Awkar, five miles from the port. Security measures are onerous, a hangover from the bombing of the American embassy in Beirut in 1983, which killed 63 people. It took a week before the ambassador, Dorothy Shea, a career diplomat, toured the port. Even on social media it has been far quieter than other foreign powers.

(www.economist.com, 13.08.2020. Adapted.)

The descriptions in the paragraph

Read the text to answer question.

     We are at the beginning of a long road to rethinking and rebuilding supply chain models to encompass not just financial priorities but also business operations continuity in the most trying of circumstances. Executives from France and Italy, for example, are discussing ways to remake their businesses in the wake of the Covid-19 pandemic. Their specialty is supply chains. They are smart people at the core of the world’s most sophisticated and valuable systems of manufacture, shipment, and inventory, and yet many of their supply systems staggered in the past few months – the byproduct of reliance on old business models.

(Antonio Gulli. www.forbes.com, 28.07.2020. Adapted.)

In the fragment “and yet many of their supply systems staggered in the past few months”, the underlined word introduces a