Todas as questões do ENEM

A sonda New Horizons, lançada pela NASA em janeiro de 2006, atingiu uma velocidade de 57.600 km/h ao sair da órbita terrestre. Supondo que a referida sonda viaje sempre com essa velocidade até o sistema estelar mais próximo, Alpha-Centauri, que está a uma distância aproximada de 4,4 anos-luz da Terra, o tempo, em anos, para completar essa viagem seria entre

Considere: 1 ano-luz = distância percorrida pela luz, no

vácuo, em 1 ano.

Velocidade da luz no vácuo = 300.000 km/s.

       Aarav Chavda has been diving off the coast of Florida for years. Each time he became increasingly depressed by the ever-growing empty spaces, as colourful species of fish and coral reefs continued to disappear. A significant reason for that disappearance is the lionfish, an invasive species that has boomed in Atlantic waters from Florida to the Caribbean in recent decades, and in numerous other places from Brazil and Mexico to the Mediterranean.

      Lionfish have no natural predators outside their native range — in the Indian and Pacific Oceans and the Red Sea — and are all-consuming, devouring an estimated 79% of young marine life within five weeks of entering a coral reef system. “You can see the impacts on the reefs when you dive now — it’s less vibrant, it’s less noisy,” Chavda said. “We know there are solutions for some of the problems — such as coral- -friendly sunscreens to help protect the reefs — but nobody’s been able to do anything about the lionfish.”

   So Chavda and a team of ecologically aware fellow scuba enthusiasts decided to act by establishing a company called Inversa, which turns lionfish into a new product: fish leather. Chavda, 27, and his childhood friend from Texas, Roland Salatino, set up the Florida-based company to make the leather. They process the fish hides1 by tanning them with drying agents and dye them before selling the leather to partner companies to fashion into high-end products including wallets, belts and handbags. Fish skin is thin but, because the fibre structure runs crossways, it is stronger than many other types of leather. Each hide, Chavda says, can save up to 70,000 native reef fish.

      The hides are also more sustainable than traditional animal leathers, which generally require grazing on huge amounts of pasture — degrading soils and producing high carbon emissions. Inversa does not hunt the lionfish itself. Instead, it relies on educating and encouraging largely poor fishermen and women in often remote places to catch them. “We’re really sort of empowering the consumer and fashion by doing something for the planet — then we empower dive communities in fishing cooperatives to do something for themselves,” Chavda said.

(Richard Luscombe. www.theguardian.com, 12.06.2022. Adaptado.) 1 hide: an animal’s skin used to make leather

A expressão “such as”, no trecho do segundo parágrafo “such as coral-friendly sunscreens”, foi utilizada para introduzir

Today, more than 6.000.000 people live in London and every year, more than nine million people come from countries all over the world to visit the city.

A quick and easy way to get to different places in the city is to use an Underground train. The trains run all day and most of the night. You can see much more of London from one of its famous red buses. There are some special buses for visitors that take you to many of the interesting places in the city on one journey that takes about one and a half hour. London taxis are called ‘black cabs’. Most of them are black but some are not. The drivers are friendly and helpful. It’s also possible to take a long boat trip along the River Thames and see lovely places in London and out of the city. London has interesting old buildings to visit, many of them are hundreds of years old: The Buckingham Palace – the home of the Queen; the Tower Bridge – opened in 1894, The Houses of the Parliament – the home of the British government and beautiful churches: St. Paul’s Cathedral and Westminster Abbey. This abbey is where many kings and queens are crowned – or get the throne – and where the royal family get married.

London has beautiful parks and gardens, theatres, museums and art galleries. There are also streets with famous shops and markets and international restaurants and English pubs where you can drink the English beer. The typical English food is fish and chips. They’re cheap and good to eat. But there are many, many more things to see and do in London. Come and see!

The pronoun “its”on sentence 03, in the 2nd paragraph refers to

       Aarav Chavda has been diving off the coast of Florida for years. Each time he became increasingly depressed by the ever-growing empty spaces, as colourful species of fish and coral reefs continued to disappear. A significant reason for that disappearance is the lionfish, an invasive species that has boomed in Atlantic waters from Florida to the Caribbean in recent decades, and in numerous other places from Brazil and Mexico to the Mediterranean.

      Lionfish have no natural predators outside their native range — in the Indian and Pacific Oceans and the Red Sea — and are all-consuming, devouring an estimated 79% of young marine life within five weeks of entering a coral reef system. “You can see the impacts on the reefs when you dive now — it’s less vibrant, it’s less noisy,” Chavda said. “We know there are solutions for some of the problems — such as coral- -friendly sunscreens to help protect the reefs — but nobody’s been able to do anything about the lionfish.”

   So Chavda and a team of ecologically aware fellow scuba enthusiasts decided to act by establishing a company called Inversa, which turns lionfish into a new product: fish leather. Chavda, 27, and his childhood friend from Texas, Roland Salatino, set up the Florida-based company to make the leather. They process the fish hides1 by tanning them with drying agents and dye them before selling the leather to partner companies to fashion into high-end products including wallets, belts and handbags. Fish skin is thin but, because the fibre structure runs crossways, it is stronger than many other types of leather. Each hide, Chavda says, can save up to 70,000 native reef fish.

      The hides are also more sustainable than traditional animal leathers, which generally require grazing on huge amounts of pasture — degrading soils and producing high carbon emissions. Inversa does not hunt the lionfish itself. Instead, it relies on educating and encouraging largely poor fishermen and women in often remote places to catch them. “We’re really sort of empowering the consumer and fashion by doing something for the planet — then we empower dive communities in fishing cooperatives to do something for themselves,” Chavda said.

(Richard Luscombe. www.theguardian.com, 12.06.2022. Adaptado.) 1 hide: an animal’s skin used to make leather

Today, more than 6.000.000 people live in London and every year, more than nine million people come from countries all over the world to visit the city.

A quick and easy way to get to different places in the city is to use an Underground train. The trains run all day and most of the night. You can see much more of London from one of its famous red buses. There are some special buses for visitors that take you to many of the interesting places in the city on one journey that takes about one and a half hour. London taxis are called ‘black cabs’. Most of them are black but some are not. The drivers are friendly and helpful. It’s also possible to take a long boat trip along the River Thames and see lovely places in London and out of the city. London has interesting old buildings to visit, many of them are hundreds of years old: The Buckingham Palace – the home of the Queen; the Tower Bridge – opened in 1894, The Houses of the Parliament – the home of the British government and beautiful churches: St. Paul’s Cathedral and Westminster Abbey. This abbey is where many kings and queens are crowned – or get the throne – and where the royal family get married.

London has beautiful parks and gardens, theatres, museums and art galleries. There are also streets with famous shops and markets and international restaurants and English pubs where you can drink the English beer. The typical English food is fish and chips. They’re cheap and good to eat. But there are many, many more things to see and do in London. Come and see!

About the trains it is correct to say that

       Aarav Chavda has been diving off the coast of Florida for years. Each time he became increasingly depressed by the ever-growing empty spaces, as colourful species of fish and coral reefs continued to disappear. A significant reason for that disappearance is the lionfish, an invasive species that has boomed in Atlantic waters from Florida to the Caribbean in recent decades, and in numerous other places from Brazil and Mexico to the Mediterranean.

      Lionfish have no natural predators outside their native range — in the Indian and Pacific Oceans and the Red Sea — and are all-consuming, devouring an estimated 79% of young marine life within five weeks of entering a coral reef system. “You can see the impacts on the reefs when you dive now — it’s less vibrant, it’s less noisy,” Chavda said. “We know there are solutions for some of the problems — such as coral- -friendly sunscreens to help protect the reefs — but nobody’s been able to do anything about the lionfish.”

   So Chavda and a team of ecologically aware fellow scuba enthusiasts decided to act by establishing a company called Inversa, which turns lionfish into a new product: fish leather. Chavda, 27, and his childhood friend from Texas, Roland Salatino, set up the Florida-based company to make the leather. They process the fish hides1 by tanning them with drying agents and dye them before selling the leather to partner companies to fashion into high-end products including wallets, belts and handbags. Fish skin is thin but, because the fibre structure runs crossways, it is stronger than many other types of leather. Each hide, Chavda says, can save up to 70,000 native reef fish.

      The hides are also more sustainable than traditional animal leathers, which generally require grazing on huge amounts of pasture — degrading soils and producing high carbon emissions. Inversa does not hunt the lionfish itself. Instead, it relies on educating and encouraging largely poor fishermen and women in often remote places to catch them. “We’re really sort of empowering the consumer and fashion by doing something for the planet — then we empower dive communities in fishing cooperatives to do something for themselves,” Chavda said.

(Richard Luscombe. www.theguardian.com, 12.06.2022. Adaptado.) 1 hide: an animal’s skin used to make leather

No trecho do terceiro parágrafo “and dye them before selling the leather to partner companies”, o termo sublinhado refere-se a 

Today, more than 6.000.000 people live in London and every year, more than nine million people come from countries all over the world to visit the city.

A quick and easy way to get to different places in the city is to use an Underground train. The trains run all day and most of the night. You can see much more of London from one of its famous red buses. There are some special buses for visitors that take you to many of the interesting places in the city on one journey that takes about one and a half hour. London taxis are called ‘black cabs’. Most of them are black but some are not. The drivers are friendly and helpful. It’s also possible to take a long boat trip along the River Thames and see lovely places in London and out of the city. London has interesting old buildings to visit, many of them are hundreds of years old: The Buckingham Palace – the home of the Queen; the Tower Bridge – opened in 1894, The Houses of the Parliament – the home of the British government and beautiful churches: St. Paul’s Cathedral and Westminster Abbey. This abbey is where many kings and queens are crowned – or get the throne – and where the royal family get married.

London has beautiful parks and gardens, theatres, museums and art galleries. There are also streets with famous shops and markets and international restaurants and English pubs where you can drink the English beer. The typical English food is fish and chips. They’re cheap and good to eat. But there are many, many more things to see and do in London. Come and see!

In this sentence “This abbey is where many kings and queens are crowned.” (3rd paragraph, last sentence) we have an example of passive voice. Mark the sentence where the passive is WRONG:

       Aarav Chavda has been diving off the coast of Florida for years. Each time he became increasingly depressed by the ever-growing empty spaces, as colourful species of fish and coral reefs continued to disappear. A significant reason for that disappearance is the lionfish, an invasive species that has boomed in Atlantic waters from Florida to the Caribbean in recent decades, and in numerous other places from Brazil and Mexico to the Mediterranean.

      Lionfish have no natural predators outside their native range — in the Indian and Pacific Oceans and the Red Sea — and are all-consuming, devouring an estimated 79% of young marine life within five weeks of entering a coral reef system. “You can see the impacts on the reefs when you dive now — it’s less vibrant, it’s less noisy,” Chavda said. “We know there are solutions for some of the problems — such as coral- -friendly sunscreens to help protect the reefs — but nobody’s been able to do anything about the lionfish.”

   So Chavda and a team of ecologically aware fellow scuba enthusiasts decided to act by establishing a company called Inversa, which turns lionfish into a new product: fish leather. Chavda, 27, and his childhood friend from Texas, Roland Salatino, set up the Florida-based company to make the leather. They process the fish hides1 by tanning them with drying agents and dye them before selling the leather to partner companies to fashion into high-end products including wallets, belts and handbags. Fish skin is thin but, because the fibre structure runs crossways, it is stronger than many other types of leather. Each hide, Chavda says, can save up to 70,000 native reef fish.

      The hides are also more sustainable than traditional animal leathers, which generally require grazing on huge amounts of pasture — degrading soils and producing high carbon emissions. Inversa does not hunt the lionfish itself. Instead, it relies on educating and encouraging largely poor fishermen and women in often remote places to catch them. “We’re really sort of empowering the consumer and fashion by doing something for the planet — then we empower dive communities in fishing cooperatives to do something for themselves,” Chavda said.

(Richard Luscombe. www.theguardian.com, 12.06.2022. Adaptado.) 1 hide: an animal’s skin used to make leather

No trecho do quarto parágrafo “Instead, it relies on educating and encouraging largely poor fishermen and women”, o termo “instead” equivale, em português, a 

Em um plano, são dados quatro pontos colineares distintos O, A, B e C, e dois outros pontos distintos D e E, de modo que as retas OA e DE sejam concorrentes em O, conforme a figura. Também é dado um ponto F, no mesmo plano, que não é colinear com quaisquer pares de pontos dentre O, A, B, C, D e E. O número máximo de triângulos que podem ser formados com vértices escolhidos entre os pontos O, A, B, C, D, E e F é

       Aarav Chavda has been diving off the coast of Florida for years. Each time he became increasingly depressed by the ever-growing empty spaces, as colourful species of fish and coral reefs continued to disappear. A significant reason for that disappearance is the lionfish, an invasive species that has boomed in Atlantic waters from Florida to the Caribbean in recent decades, and in numerous other places from Brazil and Mexico to the Mediterranean.

      Lionfish have no natural predators outside their native range — in the Indian and Pacific Oceans and the Red Sea — and are all-consuming, devouring an estimated 79% of young marine life within five weeks of entering a coral reef system. “You can see the impacts on the reefs when you dive now — it’s less vibrant, it’s less noisy,” Chavda said. “We know there are solutions for some of the problems — such as coral- -friendly sunscreens to help protect the reefs — but nobody’s been able to do anything about the lionfish.”

   So Chavda and a team of ecologically aware fellow scuba enthusiasts decided to act by establishing a company called Inversa, which turns lionfish into a new product: fish leather. Chavda, 27, and his childhood friend from Texas, Roland Salatino, set up the Florida-based company to make the leather. They process the fish hides1 by tanning them with drying agents and dye them before selling the leather to partner companies to fashion into high-end products including wallets, belts and handbags. Fish skin is thin but, because the fibre structure runs crossways, it is stronger than many other types of leather. Each hide, Chavda says, can save up to 70,000 native reef fish.

      The hides are also more sustainable than traditional animal leathers, which generally require grazing on huge amounts of pasture — degrading soils and producing high carbon emissions. Inversa does not hunt the lionfish itself. Instead, it relies on educating and encouraging largely poor fishermen and women in often remote places to catch them. “We’re really sort of empowering the consumer and fashion by doing something for the planet — then we empower dive communities in fishing cooperatives to do something for themselves,” Chavda said.

(Richard Luscombe. www.theguardian.com, 12.06.2022. Adaptado.) 1 hide: an animal’s skin used to make leather

No trecho do quarto parágrafo “‘We’re really sort of empowering the consumer and fashion’”, a expressão sublinhada significa, no contexto em questão,

Um losango é um quadrilátero plano cujos lados são congruentes entre si. No losango representado abaixo, a soma dos comprimentos de suas diagonais é m ݉ e sua área é igual a s. O lado desse losango é igual a

    É bárbaro, segundo a etimologia da palavra (com a repetição da sequência barbar, de forma onomatopaica), quem tem dificuldades de elocução, de pronunciação, quem gagueja, quem tem uma fala entrecortada.

Maria vai à feira e, após um breve levantamento de preços, verifica que a quantia que ela possui pode ser usada para comprar qualquer uma das três combinações de frutas seguintes, sem levar troco para casa:

I. 1 maçã, 2 peras e 18 laranjas.

II. 5 maçãs, 5 peras e 8 laranjas.

III. 8 maçãs, 7 peras e 1 laranja.

Pode-se concluir, corretamente, a partir desses dados, que o preço de