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Article: As they migrate, butterflies and moths choose the winds they want to fly with, and they change their body positions if they start floating in the wrong direction. This new finding suggests that insects may use some of the same methods that birds use for traveling long distances. Scientists have long thought that insects were simply at the mercy of the wind. Fascinating as their skills of flight are, migrating behavior has been difficult to study in insects because many long distant trips happen thousands of feet above ground. Only recently have scientists developed technologies that can detect such little creatures at such great heights. To their surprise, though, the insects weren't passive travelers on the winds. In autumn, for example, most light winds blew from the east, but the insects somehow sought out ones that carried them south and they positioned themselves to navigate directly to their wintering homes. Even in the spring, when most winds flowed northward, the insects didn't always go with the flow. If breezes weren't blowing in the exact direction they wanted to go, the insects changed their body positions to compensate(, ). Many migrating birds do the same thing. The study also found that butterflies and moths actively flew within the air streams that pushed them along. By adding flight speeds to wind speeds, the scientists calculated that butterflies and moths can travel as fast as 100 kilometers an hour. The findings may have real-world applications. With climate warming, migrating insects are growing in number. Knowing how and when these pests move could help farmers decide when to spray their crops. Question: According to the passage, the findings can _ Yes or no, is the answer "instruct farmers when to spray their crops"?
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No

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Article: We offer five kinds of courses. Each course has been designed to help students according to their needs. Course 1: General English General English is designed to develop students' basic communication skills in: Speaking and Pronunciation, Reading, Listening, Writing, Grammar and Vocabulary. Tuesday to Friday: 9:00 am to 11:00 am, $288 per week. Course 2: Academic English Academic English is for students who want to take the IELTS exam or for those who need to use English in a professional area. Monday to Friday: 4:00 pm to 5:00 pm, $320 per week. Course 3: High School ESL Why not make the most of your time studying in Australia with the help from TIES? We have High School ESL classes each week specifically designed for International Students. Tuesday to Friday: 8:00 am to 11:00 am, $25 per hour. Course 4: Night Classes Do you want to improve your English and get the best results possible in your GRE test? We have two night classes each week designed to meet your needs. Tuesday and Thursday evenings: 8:30 pm to 10:30 pm, $60 per day. Course 5: One on One If you are interested in some One on One lessons with TIES teachers, we can design a curriculum to meet your needs. One on One lessons can improve your English language skills more quickly and help students who want to take TOEFL. Tuesday to Friday: 2:00 pm to 5:00 pm, $80 per hour. Question: Which course would be helpful for students who want to take the IELTS exam? Yes or no, is the answer "Course 2."?
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Yes

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Article: At age 61, identical twins Jeanne and Susan no longer look exactly alike. Susan smoked for many years and is an admitted sun worshipper, whose habits Jeanne does not share. A new study of twins suggests you can blame those coarse wrinkles, brown or pink spots on too much time in the sun, smoking, and being overweight. Because twins share genes, but may have different exposures to environmental factors, studying twins allows an "opportunity to control for genetic susceptibility ," Dr. Elma D. Baron, at Case Western Reserve School of Medicine in Cleveland, Ohio, and his colleagues explain in the latest issue of Archives of Dermatology. Their analysis of environmental skin-damaging factors in 65 pairs of twins hints that skin aging is related more to environment and lifestyle than genetic factors. But when it comes to skin cancer, the researchers say their findings support previous reports that both environment and genes affect skin cancer risk. Baron's team examined facial skin of 130 twins, 18 to 77 years old, who lived mostly in the northem Midwest and Eastern regions of the US, who were attending the Twins Days Festival in Ohio in August 2002. At this time, each of the twins also separately reported how their skin burned or tanned without sunscreen, their weight, and their history of skin cancer, smoking, and alcohol drinking. The study group consisted of 52 fraternal and 10 identical twin pairs, plus 3 pairs who were unsure of their twin status. From these data, the researchers noted strong ties, outside of twin status, between smoking, older age, and being overweight, and having facial skin with evidence of environmental damage. By contrast, sunscreen use and drinking alcohol appeared related to less skin damage. Baron and his colleagues say the current findings, which highlight ties between facial aging and potentially avoidable environmental factors--such as smoking, being overweight, and unprotected overexposure to the sun's damaging rays--may help motivate people to minimize these risky behaviors. Question: The passage is mainly concerned with _ . Yes or no, is the answer "aging skin and environmental factors"?
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No