Plants need water because it is required for photosynthesis…
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Plаnts need wаter becаuse it is required fоr phоtоsynthesis.
PASSAGE 2: Reаd this pаssаge tо answer questiоns 12-1. Damage Cоntrol [A] Measuring the scale of a natural disaster is not easy. Tornados, hurricanes, and volcanic eruptions are typically measured according to their intensity. Part of this measurement includes the amount of destruction that the incident can inflict on the natural setting, as well as on human life. Tornados, for example, are measured on what is known as the Fujita Scale. While the weakest tornados are classified as F0s, those that are the most powerful and destructive are classified as F5s. [B] Perhaps the most famous of these measurement scales, however, is the Richter Scale - the system for measuring the strengths of earthquakes. Most earthquakes that have been recorded in the modern era have fallen somewhere between 0 and 9. At the lower end of the scale, earthquakes that register between 2.5 and 5.4 can be felt on the Earth's surface, but only cause minor damage. Those below 2.5, while technology designed to monitor seismic activity can capture movement, cannot be felt at all. By contrast, at the higher end of the Richter Scale, seismic activity that registers above 8 are considered catastrophic - capable of causing massive damage at the epicenter of the earthquake. [C] Despite the usefulness of these scales, however, it is essential to keep in mind that the raw strength of a natural disaster does not directly correlate with the amount of death and destruction that it leaves in its wake.1 Rather, researchers have come to understand that high levels of preparation for such events can dramatically reduce the negative impact that they can have on a society. [D] Internationally, the most impressive case of this preparedness is Japan. Given its location on several fault lines,2 the Japanese government and Japanese companies have spent billions of dollars preparing their buildings as well as public infrastructure for the possibility of a major earthquake. In Tokyo, nearly 90 percent of buildings have been designed to survive the impact of major earthquakes. As one example of this commitment to earthquake-proof engineering, many towers in Japan are built upon special foundations that allow them to slightly slide when the ground begins to shake. Furthermore, Japanese bullet trains are programmed to immediately stop once an earthquake has been detected somewhere nearby. [E] By contrast, experts have suggested that the United States is nowhere near as prepared if a massive earthquake were to hit the highly vulnerable West Coast. While some buildings and public utilities have been built to withstand a major earthquake, projects such as these have been in the minority. Since many seismologists3 have predicted that a major earthquake along the U.S. West Coast is almost inevitable in the next 100 years, some believe that the Americans are taking an incredible gamble. For these critics, taking inspiration from the Japanese and committing to a higher level of preparedness is the only path to take. By doing so, future earthquakes need not be described as "major" or "great," despite the use of measurement systems like the Richter Scale. 1 If something happens in the wake of an event, it happens afterwards as a result of the event. 2 A fault line is a location on the Earth's surface that is very likely to experience earthquakes. 3 A seismologist is a scientist who studies earthquakes. QUESTION: What does the writer imply in the last sentence of the passage?
Cоntext Clues: Reаd the pаssаge and answer the questiоn belоw: We should be careful not to ostracize those who are different from us. It is much better for all if we are welcoming to everyone. Question: What is the meaning of ostracize as it is used in the text?
PASSAGE 1: Reаd this pаssаge tо answer questiоns 2-11. The State оf Sleep Deprivation in America [A] If you're able to pause between sips of coffee and keep your eyes open long enough to read this message, please pay attention. You need to start regularly getting an adequate night's sleep. Not enough rest is bad for your health, and may even lead to deadly consequences. [B] The Mayo Clinic, one of the U.S.'s most prestigious medical institutions, recommends that adults get seven to eight hours of sleep each night. However, a lot of Americans disregard that advice. A 2009 study by the Centers for Disease Control and Prevention found that 35 percent of Americans typically got less than seven hours of sleep a night. [C] Sleep is really important for maintaining our overall health. During deep sleep, growth hormones are released in children and young adults. Cells use the downtime to repair themselves from damage caused by stress and exposure to ultraviolet rays. The break seems especially crucial for the brain, whose nerve cells, or neurons, can become so energy-depleted and polluted with waste products from normal cellular activity that they may begin to malfunction if you stay awake. [D] While we don't generally think of sleep deprivation as a massive public health problem, medical research suggests that inadequate sleep plays a factor in a surprising array of problems. Here are a few of the more serious ones: [E] Obesity: Studies show that the less you sleep, the greater the likelihood that you'll pack on the pounds. In one study, subjects in their twenties who got less than six hours of sleep each night were 7.5 times likely to have a higher body mass index than people who got adequate sleep, even when family history, the amount of exercise, and other factors were accounted for. Studies suggest that not getting enough sleep can contribute to lower levels of leptin, a hormone that controls appetite, and higher levels of ghrelin, which tends to make you feel hungrier. [F] Diabetes: A 2005 study found that middle-aged and older adults who got six hours of sleep each night were 1.7 times more likely to develop diabetes, and those who got five hours or less were 2.5 times as likely. [G] Cardiovascular disease and hypertension: A 2011 study published in the Journal of the American Heart Association reported that people who suffered from insomnia had between a 27 and 45 percent increased risk of having a heart attack in which a part of the heart muscle becomes blocked and can't get oxygen. Another study, published in 2013 in the European Heart Journal, found that chronic insomniacs had three times the risk of heart failure in which the heart is so weakened that it can't pump enough blood to meet the body's needs. A study published in the journal Stroke in 2014 reported that people who suffered from insomnia also had a 54 percent higher chance of being hospitalized for a stroke over a four-year period. [H] Immune system: According to the Mayo Clinic, sleep deprivation can contribute to decreased production of proteins called cytokines, which your body needs when you have an infection or inflammation, and also hinders infection-fighting antibodies and cells. A study published in 2012 in the journal Sleep reported that subjects who got less than six hours of sleep were 11.5 percent less likely to get protection from a hepatitis B vaccination than others who slept seven or more hours. [I] These four conditions may result in a shortened life span. In a study published in 2010 in the journal Sleep, researchers reported that over a 14-year period, men who complained of chronic insomnia and routinely slept for less than six hours a night were four times more likely to die. [J] But the conclusion of all this is that you need to make a habit of getting a good night's sleep to avoid potentially serious health problems. Or, to look at it in a more positive way, if you get adequate rest, your body and mind are going to work and feel better. QUESTION: Which condition is NOT mentioned as being affected by sleep deprivation?
PASSAGE 1: Reаd this pаssаge tо answer questiоns 2-11. The State оf Sleep Deprivation in America [A] If you're able to pause between sips of coffee and keep your eyes open long enough to read this message, please pay attention. You need to start regularly getting an adequate night's sleep. Not enough rest is bad for your health, and may even lead to deadly consequences. [B] The Mayo Clinic, one of the U.S.'s most prestigious medical institutions, recommends that adults get seven to eight hours of sleep each night. However, a lot of Americans disregard that advice. A 2009 study by the Centers for Disease Control and Prevention found that 35 percent of Americans typically got less than seven hours of sleep a night. [C] Sleep is really important for maintaining our overall health. During deep sleep, growth hormones are released in children and young adults. Cells use the downtime to repair themselves from damage caused by stress and exposure to ultraviolet rays. The break seems especially crucial for the brain, whose nerve cells, or neurons, can become so energy-depleted and polluted with waste products from normal cellular activity that they may begin to malfunction if you stay awake. [D] While we don't generally think of sleep deprivation as a massive public health problem, medical research suggests that inadequate sleep plays a factor in a surprising array of problems. Here are a few of the more serious ones: [E] Obesity: Studies show that the less you sleep, the greater the likelihood that you'll pack on the pounds. In one study, subjects in their twenties who got less than six hours of sleep each night were 7.5 times likely to have a higher body mass index than people who got adequate sleep, even when family history, the amount of exercise, and other factors were accounted for. Studies suggest that not getting enough sleep can contribute to lower levels of leptin, a hormone that controls appetite, and higher levels of ghrelin, which tends to make you feel hungrier. [F] Diabetes: A 2005 study found that middle-aged and older adults who got six hours of sleep each night were 1.7 times more likely to develop diabetes, and those who got five hours or less were 2.5 times as likely. [G] Cardiovascular disease and hypertension: A 2011 study published in the Journal of the American Heart Association reported that people who suffered from insomnia had between a 27 and 45 percent increased risk of having a heart attack in which a part of the heart muscle becomes blocked and can't get oxygen. Another study, published in 2013 in the European Heart Journal, found that chronic insomniacs had three times the risk of heart failure in which the heart is so weakened that it can't pump enough blood to meet the body's needs. A study published in the journal Stroke in 2014 reported that people who suffered from insomnia also had a 54 percent higher chance of being hospitalized for a stroke over a four-year period. [H] Immune system: According to the Mayo Clinic, sleep deprivation can contribute to decreased production of proteins called cytokines, which your body needs when you have an infection or inflammation, and also hinders infection-fighting antibodies and cells. A study published in 2012 in the journal Sleep reported that subjects who got less than six hours of sleep were 11.5 percent less likely to get protection from a hepatitis B vaccination than others who slept seven or more hours. [I] These four conditions may result in a shortened life span. In a study published in 2010 in the journal Sleep, researchers reported that over a 14-year period, men who complained of chronic insomnia and routinely slept for less than six hours a night were four times more likely to die. [J] But the conclusion of all this is that you need to make a habit of getting a good night's sleep to avoid potentially serious health problems. Or, to look at it in a more positive way, if you get adequate rest, your body and mind are going to work and feel better. QUESTION: According to paragraph C, what part of the body is sleep most important for?
PASSAGE 1: Reаd this pаssаge tо answer questiоns 2-11. The State оf Sleep Deprivation in America [A] If you're able to pause between sips of coffee and keep your eyes open long enough to read this message, please pay attention. You need to start regularly getting an adequate night's sleep. Not enough rest is bad for your health, and may even lead to deadly consequences. [B] The Mayo Clinic, one of the U.S.'s most prestigious medical institutions, recommends that adults get seven to eight hours of sleep each night. However, a lot of Americans disregard that advice. A 2009 study by the Centers for Disease Control and Prevention found that 35 percent of Americans typically got less than seven hours of sleep a night. [C] Sleep is really important for maintaining our overall health. During deep sleep, growth hormones are released in children and young adults. Cells use the downtime to repair themselves from damage caused by stress and exposure to ultraviolet rays. The break seems especially crucial for the brain, whose nerve cells, or neurons, can become so energy-depleted and polluted with waste products from normal cellular activity that they may begin to malfunction if you stay awake. [D] While we don't generally think of sleep deprivation as a massive public health problem, medical research suggests that inadequate sleep plays a factor in a surprising array of problems. Here are a few of the more serious ones: [E] Obesity: Studies show that the less you sleep, the greater the likelihood that you'll pack on the pounds. In one study, subjects in their twenties who got less than six hours of sleep each night were 7.5 times likely to have a higher body mass index than people who got adequate sleep, even when family history, the amount of exercise, and other factors were accounted for. Studies suggest that not getting enough sleep can contribute to lower levels of leptin, a hormone that controls appetite, and higher levels of ghrelin, which tends to make you feel hungrier. [F] Diabetes: A 2005 study found that middle-aged and older adults who got six hours of sleep each night were 1.7 times more likely to develop diabetes, and those who got five hours or less were 2.5 times as likely. [G] Cardiovascular disease and hypertension: A 2011 study published in the Journal of the American Heart Association reported that people who suffered from insomnia had between a 27 and 45 percent increased risk of having a heart attack in which a part of the heart muscle becomes blocked and can't get oxygen. Another study, published in 2013 in the European Heart Journal, found that chronic insomniacs had three times the risk of heart failure in which the heart is so weakened that it can't pump enough blood to meet the body's needs. A study published in the journal Stroke in 2014 reported that people who suffered from insomnia also had a 54 percent higher chance of being hospitalized for a stroke over a four-year period. [H] Immune system: According to the Mayo Clinic, sleep deprivation can contribute to decreased production of proteins called cytokines, which your body needs when you have an infection or inflammation, and also hinders infection-fighting antibodies and cells. A study published in 2012 in the journal Sleep reported that subjects who got less than six hours of sleep were 11.5 percent less likely to get protection from a hepatitis B vaccination than others who slept seven or more hours. [I] These four conditions may result in a shortened life span. In a study published in 2010 in the journal Sleep, researchers reported that over a 14-year period, men who complained of chronic insomnia and routinely slept for less than six hours a night were four times more likely to die. [J] But the conclusion of all this is that you need to make a habit of getting a good night's sleep to avoid potentially serious health problems. Or, to look at it in a more positive way, if you get adequate rest, your body and mind are going to work and feel better. QUESTION: What year is the most recent study mentioned by the author?