Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

Q: Context: The major cause of outdoor air pollution is the burning of fossil fuels. Fossil fuels are burned in power plants, factories, motor vehicles, and home heating systems. Ranching and using chemicals such as fertilizers also cause outdoor air pollution. Erosion of soil in farm fields, mining activities, and construction sites adds dust particles to the air as well. Some specific outdoor air pollutants are described in Table 25.1. Air Pollutant Sulfur oxides Nitrogen oxides Carbon monoxide Carbon dioxide Particles (dust, smoke) Mercury Smog Ground-level ozone Source coal burning motor vehicle exhaust motor vehicle exhaust all fossil fuel burning wood and coal burning coal burning coal burning motor vehicle exhaust Problem acid rain acid rain poisoning global climate change respiratory problems nerve poisoning respiratory problems respiratory problems Outdoor air pollution causes serious human health problems. For example, pollutants in the air are major contributors to respiratory and cardiovascular diseases. Air pollution may trigger asthma attacks and heart attacks in people with underlying health problems. In fact, more people die each year from air pollution than automobile accidents. Air pollution may also cause acid rain. This is rain that is more acidic (has a lower pH) than normal rain. Acids form in the atmosphere when nitrogen and sulfur oxides mix with water in air. Nitrogen and sulfur oxides come mainly from motor vehicle exhaust and coal burning. If acid rain falls into lakes, it lowers the pH of the water and may kill aquatic organisms. If it falls on the ground, it may damage soil and soil organisms. If it falls on plants, it may make them sick or even kill them. Acid rain also damages stone buildings, bridges, and statues, like the one in Figure 25.1. Another major problem caused by air pollution is global climate change. Gases such as carbon dioxide from the burning of fossil fuels increase the greenhouse effect and raise Earths temperature. The greenhouse effect is a natural feature of Earths atmosphere. It occurs when certain gases in the atmosphere, including carbon dioxide, radiate the suns heat back down to Earths surface. Figure 25.2 shows how this happens. Without greenhouse gases in the atmosphere, the heat would escape into space. The natural greenhouse effect of Earths atmosphere keeps the planets temperature within a range that can support life. The rise in greenhouse gases due to human actions is too much of a good thing. It increases the greenhouse effect and causes Earths average temperature to rise. Rising global temperatures, in turn, are melting polar ice caps and glaciers. Figure 25.3 shows how much smaller the Arctic ice cap was in 2012 than it was in 1984. With more liquid water on Earths surface, sea levels are rising. Adding more heat energy to Earths atmosphere also causes more extreme weather and changes in precipitation patterns. Global warming is already causing food and water shortages and species extinctions. These problems will only grow worse unless steps are taken to curb greenhouse gases and global climate change. You may be able to avoid some of the health effects of outdoor air pollution by staying indoors on high-pollution days. However, some indoor air is just as polluted as outdoor air. One source of indoor air pollution is radon gas. Radon is a radioactive gas that may seep into buildings from rocks underground. Exposure to radon gas may cause lung cancer. Another potential poison in indoor air is carbon monoxide. It may be released by faulty or poorly vented furnaces or other fuel-burning appliances. Indoor furniture, carpets, and paints may release toxic compounds into the air as well. Other possible sources of indoor air pollution include dust, mold, and pet dander. Its easier to control the quality of indoor air than outdoor air. Steps home owners can take to improve indoor air quality include: keeping the home clean so it is as free as possible from dust, mold, and pet dander. choosing indoor furniture, flooring, and paints that are low in toxic compounds such as VOCs (volatile organic compounds). making sure that fuel-burning appliances are working correctly and venting properly. installing carbon monoxide alarms like the one in Figure 25.4 at every level of the home.
Question: __toxic gas that may be released by faulty fuel-burning appliances

A: carbon monoxide
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Q: Context: In the 19th century, a Grande Dame (Jeanne Moreau) summons The Brothers Grimm to her palace, where the brothers discuss their interpretation of the Cinderella story and notice a painting displayed in the room. The Grande Dame shows the brothers a glass slipper and tells them the story of Danielle de Barbarac, the true story of Cinderella. In 16th-century France, widower Auguste de Barbarac (Jeroen Krabbe), father of eight-year-old Danielle, marries Rodmilla de Ghent (Anjelica Huston), a wealthy baroness with two young daughters, Marguerite and Jacqueline, but he dies of a heart attack shortly afterwards. Before dying, Auguste's last words are directed to Danielle, which causes the Baroness to envy Danielle and treat her miserably for the next ten years. While Marguerite (Megan Dodds) is hostile and cruel to Danielle, Jacqueline (Melanie Lynskey) is kinder and more respectful to her, though she often stays out of the crossfires to keep the peace. By the time Danielle (Drew Barrymore) is eighteen, the estate has fallen into decline, as the Baroness has no interest in farming and wishes to get back to court as soon as possible. Danielle has been reduced to a servant in her own home, waiting on her stepmother and stepsisters, and clinging to her father's last gift, a copy of Thomas More's Utopia. While collecting apples, Danielle sees a man stealing her father's horse and unseats him with an apple. When she recognizes he is Prince Henry (Dougray Scott), she abases herself. He gives her a bag of gold in exchange for her silence. She decides to use the money to rescue their servant, Maurice (Walter Sparrow), whom the Baroness has sold to pay her debts. Henry's escape from the duties of court is foiled when he encounters a band of gypsies robbing an old man. He learns that the old man is Leonardo da Vinci (Patrick Godfrey), who has been summoned to court. Henry chases a thief and returns the Mona Lisa to da Vinci, then returns with him. Meanwhile, Danielle dresses as a noblewoman and leaves to buy back Maurice, but the guards refuse, saying he is being deported to the Americas. She argues for his release and, when Henry overhears, he orders Maurice's release. Intrigued by Danielle's mysterious identity, and amazed by her eloquence and passionate pleas, he begs for her name. Danielle gives Henry the name of her mother, "Comtesse Nicole de Lancret", who died giving birth to Danielle. King Francis (Timothy West) and Queen Marie (Judy Parfitt) tell Henry that he must choose a bride before the upcoming masquerade ball, or he will have to wed the Spanish princess Gabriella. All the noble families receive an invitation and Danielle initially believes she is included. When collecting truffles, she meets Henry by the river in the company of da Vinci. Henry and Danielle engage in a lively debate before Danielle runs off after she notices Jacqueline searching for her. Henry invites her to visit the library of a nearby monastery. On the way home, they are ambushed by the gypsies, who are amused by Danielle's outrage and agree to release her with whatever she can carry. When she picks up Henry and begins to walk away, the gypsies offer them a horse. Henry and Danielle spend the night at the gypsy camp, sharing their first kiss and arranging to meet again. The next morning, Danielle catches the Baroness and Marguerite stealing her mother's dress and slippers for Marguerite to wear to the ball. After Marguerite insults Danielle about her mother's death, she punches Marguerite in the face and chases her around the manor until Marguerite threatens to throw Utopia into the fireplace. Danielle returns her mother's slippers to the Baroness in exchange for the book but Marguerite burns it in the fire anyway in an act of spite. After Danielle is punished by whipping, Jacqueline tends to her wounds and condemns Marguerite for insulting Danielle's deceased mother. When Danielle meets Henry later, she wishes to tell him the truth, but is afraid he will reject her after he confesses his love. During
Question: who plays Jacqueline?

A: melanie lynskey
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Q: Context: Work is defined differently in physics than in everyday language. In physics, work means the use of force to move an object. The teen who is playing tennis in Figure 16.1 is using force to move her tennis racket, so she is doing work. The teen who is studying isnt moving anything, so she is not doing work. Not all force that is used to move an object does work. For work to be done, the force must be applied in the same direction that the object moves. If a force is applied in a different direction than the object moves, no work is done. Figure 16.2 illustrates this point. The stick person applies an upward force on the box when raising it from the ground to chest height. Work is done because the force is applied in the same direction as the box is moving. However, as the stick person walks from left to right while holding the box at chest height, no more work is done by the persons arms holding the box up. Thats because the force supporting the box acts in a different direction than the box is moving. A small amount of work in the horizontal direction is performed when the person is accelerating during the first step of the walk across the room. But other than that, there is no work, because there is no net force acting on the box horizontally. Work is directly related to both the force applied to an object and the distance the object moves. It can be represented by the equation: Work = Force Distance This equation shows that the greater the force that is used to move an object or the farther the object is moved, the more work that is done. You can see a short video introduction to work as the product of force and distance at this link: . To see the effects of force and distance on work, compare the weight lifters in Figure 16.3. The two weight lifters on the left are lifting the same amount of weight, but the bottom weight lifter is lifting the weight a longer distance. Therefore, this weight lifter is doing more work. The two weight lifters on the bottom right are both lifting the weight the same distance, but the weight lifter on the left is lifting a heavier weight. Therefore, this weight lifter is doing more work. The equation for work given above can be used to calculate the amount of work that is done if force and distance are known. For example, assume that one of the weight lifters in Figure 16.2 lifts a weight of 400 newtons over his head to a height of 2.2 meters off the ground. The amount of work he does is: Work = 400 N 2.2 m = 880 N m Notice that the unit for work is the newton meter. This is the SI unit for work, also called the joule (J). One joule equals the amount of work that is done when 1 newton of force moves an object over a distance of 1 meter. Problem Solving Problem: Todd pushed a 500 N box 4 meters across the floor. How much work did he do? Solution: Use the equation Work = Force Distance. Work = 500 N 4 m = 2000 N m, or 2000 J You Try It! Problem: Lara lifted a 100 N box 1.5 meters above the floor. How much work did she do? Did you ever rake leaves, like the woman in Figure 16.4? It can take a long time to do all that work. But if you use an electric leaf blower, like the man in the figure, the job gets done much sooner. Both the leaf blower and the rake do the work of removing leaves from the yard, but the leaf blower has more power. Thats why it can do the same amount of work in less time. Power is a measure of the amount of work that can be done in a given amount of time. Power can be represented by the equation: Power = Work Time In this equation, work is measured in joules and time is measured in seconds, so power is expressed in joules per second (J/
Question: For work to be done on an object, force must be applied

A:
in the same direction that the object moves.
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