Questões de Concurso

Utilize o texto abaixo para responder a questão.

Climate change solutions

Man-made trees?

According to climate experts, one big problem we have right now is too much CO2 in the air. If we can out CO2 into the air, can we take it back out? At the moment, trees do this job - just not fast enough. So could we make treelike machines to do the job? Scientist Klaus Lackner of Columbia University in New York says yes and several companies are already developing the idea.

Smarter power for vehicles

• Electric car are more and more common all over the world, and the technology is getting better. And if you recharge the batteries with electricity which comes from solar and wind power, they are very clean technology.

• By law, the petrol sold in Brazil is 25% ethanol - a fuel made from sugar. It pollutes less than ordinary petrol. However, growing the sugar uses a lot of energy, and some people say the fuel can damage car engines.

• Hydrogen - a natural part of water - is used in some vehicles, including buses in cities around the world. It’s a great fuel, because the only waste it produces is water. The big problem is that making hydrogen fuel creates a lot of pollution.

Smoke to make shade?

Smoke from volcanoes and forest fires is known to block the sun and cool the Earth. Scientists at the University of Bristol in the UK have done experiments to test the idea of creating smoke to cool the world. The idea is disliked by most experts as a possibly very dangerous way to fight climate change. Dr Hugh Hunt, director of the research projects, said that the technology won’t be developed in the near future.

A vegetarian diet?

According to a report by the United Nations, producing meat creates more greenhouse gas emissions than transport - 18% of the world’s total. Eating less meat would help to reduce emissions and possibly fight global warming. Cities in Belgium, Brazil, Germany and South Africa - among many others - have “no-meat” days to bring the issue to people’s attention, and try to fight climate change close to home.

These are big ideas, but the solution in the end may be a big sum of small actions.

LANSFORD, L. Keynote Intermediate Workbook: 1. ed. National Geographic Learning, a part of Cengage Learning,2016

Utilize o texto abaixo para responder a questão.

Climate change solutions

Man-made trees?

According to climate experts, one big problem we have right now is too much CO2 in the air. If we can out CO2 into the air, can we take it back out? At the moment, trees do this job - just not fast enough. So could we make treelike machines to do the job? Scientist Klaus Lackner of Columbia University in New York says yes and several companies are already developing the idea.

Smarter power for vehicles

• Electric car are more and more common all over the world, and the technology is getting better. And if you recharge the batteries with electricity which comes from solar and wind power, they are very clean technology.

• By law, the petrol sold in Brazil is 25% ethanol - a fuel made from sugar. It pollutes less than ordinary petrol. However, growing the sugar uses a lot of energy, and some people say the fuel can damage car engines.

• Hydrogen - a natural part of water - is used in some vehicles, including buses in cities around the world. It’s a great fuel, because the only waste it produces is water. The big problem is that making hydrogen fuel creates a lot of pollution.

Smoke to make shade?

Smoke from volcanoes and forest fires is known to block the sun and cool the Earth. Scientists at the University of Bristol in the UK have done experiments to test the idea of creating smoke to cool the world. The idea is disliked by most experts as a possibly very dangerous way to fight climate change. Dr Hugh Hunt, director of the research projects, said that the technology won’t be developed in the near future.

A vegetarian diet?

According to a report by the United Nations, producing meat creates more greenhouse gas emissions than transport - 18% of the world’s total. Eating less meat would help to reduce emissions and possibly fight global warming. Cities in Belgium, Brazil, Germany and South Africa - among many others - have “no-meat” days to bring the issue to people’s attention, and try to fight climate change close to home.

These are big ideas, but the solution in the end may be a big sum of small actions.

LANSFORD, L. Keynote Intermediate Workbook: 1. ed. National Geographic Learning, a part of Cengage Learning,2016

U.K. Cyclists to Deliver Bikes, Supplies to Calais Refugees

Sarah Morpurgo has no idea how many people will join her on a 65‐mile bike trip this weekend to deliver critical supplies to refugees and migrants living in a camp known as “the New Jungle” in Calais, France, but she’s feeling optimistic.

On Tuesday, the Facebook page for Critical Mass to Calais, an informal bike ride being led by Morpurgo and her friends, said 993 people planned to attend, although she acknowledged that many of those might be “solidarity clicks” in support of the journey.

“It’s going to be a bit of a surprise as to how many people will turn up, ” Morpurgo,25, told Newsweek. “Seven more people really need to hit ‘click.’”

Seven people had done just that a day after Newsweek spoke with Morpurgo, bringing the total number “attending” to 1,000. An Indiegogo campaign for the bike ride, which will take place August 29 to 31, had reached its 1,000‐pound ($1,547) fundraising goal.

Once they get to Calais, the cyclists plan to give refugees and migrants their bikes, a much‐needed form of transportation that will make it easier for the camp’s residents to get to shops and health care clinics. Supplies such as hygiene products, tents, sleeping bags and clothing will be taken to Calais in support vehicles and donated through the Secours Catholique – Caritas France charity.

The port city of Calais has come under intense focus in recent months, becoming a symbol of a staggering global crisis of displacement: 1 out of every 122 people on Earth is either a refugee, an asylum seeker or displaced, the highest such number since World War II, according to the office of the United Nations high commissioner for refugees... (...)

(Available: http://www.newsweek.com/critical‐mass‐uk‐cyclists‐deliver‐bikes‐and‐supplies‐calais‐refugees‐366284. Adapted.)

Michael Jackson went 60 days without real sleep

Michael Jackson died while preparing to set a world record for the most successful concert run ever, but he unknowingly set another record that led to his death.

Jackson may be the only human ever to go two months without REM - Rapid Eye Movement - sleep, which is vital to keep the brain and body alive. The 60 nights of propofol infusions Dr. Conrad Murray said he gave Jackson to treat his insomnia is something a sleep expert says no one had ever undergone.

“The symptoms that Mr. Jackson was exhibiting were consistent with what someone might expect to see of someone suffering from total sleep deprivation over a chronic period, ” Dr. Charles Czeisler, a Harvard Medical School sleep expert, testified Friday at the wrongful-death trial of concert promoter AEG Live, company that hired Dr. Conrad Murray as Jackson's personal physician.
Propofol disrupts the normal sleep cycle and offers no REM sleep, yet it leaves a patient feeling refreshed as if they had experienced genuine sleep, according to Czeisler.
If the singer had not died on June 25,2009, of an overdose of the surgical anesthetic, the lack of REM sleep may have soon taken his life anyway, according Czeisler's testimony Friday.