If you really want to go green, here's good news: eating green is good for you. The very foods with a high carbon cost---meat, pork, dairy products, processed snacks---also tend to be filled with fat and calories. A green diet would be mostly vegetables and fruits, whole grains, fish and lean meats like chicken---a diet that's eco- and waistline-friendly. Eating green can be healthier and beneficial to the climate. It may be hard to believe that a meal at McDonald's produces more carbon than your trip to a far away place. More than 37% of the world's land is used for agriculture, much of which was once forested. Deforestation is a major source of carbon. The fertilizer and machinery needed on a modern farm also have a large carbon footprint, as does the network of ships and trucks that brings the food from the farm to your plate. The most efficient way to reduce the carbon footprint of your menu is to eat less meat, especially beef. Raising cattle takes a lot more energy than growing the equivalent amount of grains, fruits or vegetables. What's more, the majority of cattle in the U.S. are fed on grain and loads of it---670 million tons in 2002---and the fertilizer used to feed that creates separate environmental problems. Focus on eating lower on the food chain, with more plants and fruits and less meat and dairy. It's simple. We can change today what goes into our bodies for the health of our planet and ourselves. What is the passage mainly about? A) The benefits of eating green. B) How to reduce the carbon. C) The change of our menu. D) The ways of keeping healthy.
A

Millions of youngsters across Europe could suffer permanent hearing loss after five years if they listen to MP3 players at too high a volume for more than five hours a week, EU scientists warned. The scientists' study, requested by the European Commission, attacked the concept of "leisure noise," saying children and teenagers should be protected from increasingly high sound levels---with loud mobile phones also coming in for criticism . "There has been increasing concern about exposure from the new generation of personal music players which can reproduce sounds at very high volumes without loss of quality," the Commission, the EU's executive arm, said in a statement. "Risk for hearing damage depends on sound level and exposure time," it said. More and more young people _ the great threat that leisure noise posed to hearing, it said. Commission experts said that between 50 and 100 million people listen to portable music players on a daily basis. If they listened for only five hours a week at more than 89 decibels , they would already be beyond EU limits for noise allowed in the workplace, they said. But if they listened for longer periods, they risked permanent hearing loss after five years. The scientists calculated the number of people in that risk category at between five and 10 percent of listeners, meaning up to 10 million people in the European Union. Sales of personal music players have soared in EU countries in recent years, particularly of MP3 players. "I am worried that so many young people ... who are frequent users of personal music players and mobile phones at high acoustic levels, may be unknowingly damaging their hearing ," she said in the statement. From the passage we know that _ . A) besides the high sound levels, scientists also criticized loud mobile phones. B) if one listened for 5 hours more a week at 100 decibels, he would risk permanent hearing loss. C) it is only the level of the sound that can do damage to hearing. D) the scientists said there were 5-10 percent of MP3 listeners risking hearing loss around the world.
D

Taxpayers in America pay less in income tax than many Europeans, according to a Pew Research Center report. Belgium has the highest income tax rate, at nearly 56 percent of income, according to the Organization for Economic Cooperation and Development, or OECD. Taxpayers in the U.S. pay less than 36 percent of their incomes into the national treasury. Taxes pay for services provided by the government. The U.S. ranks 25 of the 34 developed countries polled in the report. An unmarried person with no children was used as an example in the report. In America, an unmarried person, with no children, making the average wage of $50,000 in 2014 paid 24.8 percent of their income in federal income tax and payroll taxes . A similar person living in Belgium would pay 42.3 percent of their income. The average among the 39 countries in the poll was 27.3 percent income tax. The deadline to pay taxes in America is usually April 15. This year, the deadline is April 18. American taxpayers complain that wealthy people and large companies pay too little tax, according to a Pew Research Center poll from 2015. Americans pay tax to fund programs like Social Security and Medicaid, according to the Pew Research Center. Last year, American taxes paid for $888 billion in Social Security benefits. Social Security pays the elderly an income after they stop working. The government also paid more than $546 billion in Medicaid and Medicare benefits. Those programs pay for health and medical care to people who cannot afford it, according to the Center on Budget and Policy Priorities. The majority of people benefiting from the taxes in America are _ . A) wealthy people and corporations B) unmarried people C) married couples D) the elderly retirees
D