In this task, you're given an article and an answer. Your task is to generate the question for the answer based on the given article.

Q: Article: English is a language spoken all around the world. There are more than 42 countries where the majority of the people speak English. Most native speakers of English are found in the United Kingdom, the United States, Canada, Australia, South Africa, Ireland and New Zealand. In total, for more than 375 million people, English is their mother tongue. An equal number of people learn English as a second language. These people will perhaps speak the language of their own country at home with their family, but the language of the government, schools, newspapers and TV is English. However, the number of people who learn English as a foreign language is more than 750 million. Everywhere in the world children go to school to learn English. In China, students learn English at school as a foreign language, except for those in hong Kong, where many people speak English as a first or a second language. In only fifty years, English has developed into the language most widely spoken and used in the world. English is the working language of most international organizations, international trade and tourism. English is also the language of global culture, such as popular music and the Internet. You can listen to English songs on the radio or use English to communicate with people around the world through the Internet. With so many people communicating in English every day, it will become more and more important to have a good knowledge of English.
Answer: 75,000,000.

A: How many people learn English as a second language?
****
Q: Article: Every day, young people across the globe are doing their part to keep the Earth healthy and green. These are just a few kid heroes for the planet. Manatee Minder When she was in second grade, Stephanie Cohen read about a baby manatee hit by a boat off the coast of Florida. Marine biologists saved the manatee. But caring for the sea creature was costly. Stephanie took up a collection and raised $ 27 in one day. Now 18, Stephanie still raises money to help these " gentle giants". She sells manatee decorations, candles and cards on her website kmad. Org. Color Us Green! At Clarendon Elementary School, in Secaucus, New Jersey, the students know what to do with old, used and broken crayons .Recycle them ! They collect the crayons and send them to Crazy Crayons, where they are made into different shapes and sizes. In the past eight years, new Jersey students have recycled nearly nine tons of crayons. Goodbye, Paper Bags! When Adrienne Boukis, 15, was in sixth grade, in Walnut Creek, California, she noticed that many of her classmates carried paper lunch bags. To help kids cut down on waste, she invented a reusable lunch bag, which is partially made from recycled plastic bottles. She sells the bags at greengearbag. Com and some of the _ go to charity that is in need of money. He' s Skiiing to Save the Earth Parker Liautaud, 15, wanted to raise awareness about the effects of climate change on the polar regions. He set out to become one of the youngest people ever to ski to the North Pole. Parker feels he met his goal to inspire others. "All young people have the power to make a change."he said in an interview.
Answer: They all involve themselves in green activities.

A: What do the kid heroes have in common ?
****
Q: Article: Bright blue Citi Bikes are becoming a fine sight in the New Yorker street. New Yorkers are gradually getting used to more pedaling passengers on those blue Citi Bikes. But what about local bike shops ? Is City Bike booming at their expense? At Gotham Bikes in Tribeca, a manager who gave his name as "Ben W." said the shop has seen an increase in its overall sales due to the bike-share program. "It's getting more people on the road, more people learning about the sport and getting involved," he said. An employee at Danny's Cycles in Gramercy said Citi Bike is a good option for people in a city famed for its traffic jams and aggressive drivers. "They can try out a bike without buying one:' James Ryan said. Rentals are not a big part of the business at either Gotham Bikes or Danny's Cycles. But for Frank's Bike Shop, a small business on Grand St., the bike-share program has been bad news. Owner Frank Arroyo said that his rental business has decreased by 90% since Citi Bike was launched last month. Arroyo's main rental customers are European tourists, who have since been drawn away by Citi Bikes. However, Ben said the bike-share is good for bike sales at his shop. "People have used the bike-share and realized how great it is to bike in the city, then decide that they want something nicer for themselves," he noted. Christian Farrell of Waterfront Bicycle Shop, on West St. said at first he was concerned about bike-share, though, he admitted, "I was happy to see people on bikes." Farrell's early concerns were repeated by Andrew Crooks, owner of NYC Velo, at 64 Second Ave. "It seemed like a great idea, but one that would be difficult to put into use:' Crooks said of Citi Bike. He said he worried about inexperienced riders' lack of awareness of biking rules and strong negative reaction from non-cyclists. However, he said, it's still too early to tell if his business has been impacted . While it's possible bike-share will cause a drop in business, Crooks agreed that the idea is a positive step forward for New York City.
Answer: Whether local bike shops will suffer.

A:
What is the author's chief concern about the increasing use of Citi Bikes in New York?
****