In this task, you're given an article and an answer. Your task is to generate the fill-in-the-blank question for this answer based on the given article. The blanks are always at the end of the question, and can be filled with more than one word or phrase.

[EX Q]: Article: Against the supposition that forest fires in Alaska, Canada and Siberia warm the climate, scientists have discovered that cooling may occur in areas where burnt trees allow more snow to mirror more sunlight into space. This finding suggests that taking steps to prevent northern forest fires to limit the release of greenhouse gases may warm the climate in northern regions. Usually large fires destroyed forests in these areas over the past decade. Scientists predict that with climate warming, fires may occur more frequently over the next several centuries as a result of a longer fire season. Sunlight taken in by the earth tends to cause warming, while heat mirrored back into space tends to cause cooling. This is the first study to analyze all aspects of how northern fires influence climate. Earlier studies by other scientists have suggested that fire in northern regions speed up climate warming because greenhouse gases from burning trees and plants are released into the atmosphere and thus trap heat. Scientists found that right after the fire, large amounts of greenhouse gases entered the atmosphere and caused warming. Ozone levels increased, and ash from the fire fell on far-off sea ice, darkening the surface and causing more radiation from the sun to be taken in. The following spring, however, the land within the area of the fire was brighter than before the fire, because fewer trees covered the ground. Snow on the ground mirrored more sunlight back into space, leading to cooling. "We need to find out all possible ways to reduce the growth of greenhouse gases in the atmosphere." Scientists tracked the change in the amount of radiation entering and leaving the climate system as a result of the fire, and found a measurement closely related to the global air temperature. Typically, fire in northern regions occurs in the same area every 80 to 150 years. Scientists, however, found that when fire occurs more frequently, more radiation is lost from the earth and cooling results. Specifically, they determined when fire returns 20 years earlier than predicted, 0.5 watts per square meter of area burned are _ by the earth from greenhouse gases, but 0.9 watts per square meter will be sent back into space. The net effect is cooling. Watts are used to measure the rate at which energy is gained or lost from the earth.
Answer: result in a warming climate
[EX A]: .According to the new findings, taking steps to prevent northern forest fires may _ .

[EX Q]: Article: On July 16th 1995, a new bookstore opened in the American city of Seattle. No one steps inside to buy anything. Yet, the store, if you could call it that, had sales last year of 7000 million dollars. Ten years ago, few people bought things over the Internet. Few thought it was safe. Amazon.com changed many people's minds. Ten years later, an estimated seven out of ten American adults have used a computer to buy something. Market researchers at ComScore Networks estimate online spending last year at 117,000 million dollars. That was for goods and travel services. The person who started Amazon, Jeff Bezos remains its leader. In the 1990s, he urged employees to help Amazon get big fast. Yet, Amazon invested in many similar businesses that failed. Amazon lost plenty of money. It did not make a profit until 2003. Its most recent profit and earnings report released last week was better than many market watchers had expected. Today people can buy not just books and music but also many other products through Amazon. It competes with eBay, which celebrates its 10th birthday in September. eBay calls itself "the world's online marketplace". It does not sell anything. Instead, it provides a way for others to sell goods and services. People who want to buy something make competing offers through online auctions. eBay has grown to include several other businesses. These include Paypal, a company that processes online payments. As online sellers grew, traditional stores saw the future. Today, stores from the smallest to the biggest sell on the Internet. These include the biggest of all, Wal-Mart.
Answer: one sells something while the other doesn't
[EX A]: Amazon.com and eBay are different in that _ .

[EX Q]: Article: Car Pollution Some cars do not run the way they should. Bad smoke from a car can get into the air. This bad smoke is called pollution. Pollution turns the air a gray color1. It is very dirty. It is not good for people to breathe this dirty air. To keep pollution down, the states tests cars every two years. This test checks to make sure the cars do not pollute the air. If a car does not pass the test, the owner cannot drive it the next year. Some car owners drive their cars even though they cannot pass the test. It is also very bad for the air. People want to find a way to get these cars off the road. So a state program was started that now seems to be helping. In this program the States buys cars that cannot pass the test or will help pay for repairs. This program has been helping people buy better cars or fix their old ones. It has also been helping to cut down on pollution. To meet the needs for the program, a car must be drivable and the owner must meet certain income restrictions . In order to get help from the program, a motorist must have a family income of no more than 185% of the national poverty guidelines . For a family of four, that would be no more than $32,653 each year. The state program that takes polluting cars off the road has just finished its first year, and people say it has been successful. For the past year, the state program has been buying cars that can't pass the test. Some car owners get as much as $1,000 for their old ones, while others receive as much as $500 for repairs. The cars bought by the States through the program are put out of use and sent to dismantlers .
Answer: the government can decide to buy them or not
[EX A]:
Cars get tested every two years to make sure _ .