Article: Have you ever been in a situation, where you felt uneasy because of something you think you may have forgotten to do or perhaps a feeling that you annoyed someone whom you wanted to get along with really well. If you have experienced such feelings and worse on a regular basis, then you most probably are a victim of anxiety attacks. All of us, to some extent, have experienced anxiety at different levels. There are somethings you may know about anxiety, and some things that you may not be familiar with. So in order to be prepared for your unexpected feeling of anxiety, you need to get to know what anxiety is before it _ into a panic attack. Anxiety is simply the feeling of discomfort, uneasiness or fear of what may eventually happen resulting from an imagined, or a real threatening condition. On the extreme end panic attacks can occur due to heightened feelings of anxiety. There are two main symptoms during an anxiety / panic attack and these are physical and emotional symptoms. Physical symptoms include difficulty in breathing, shaking, direct feeling of heat, rapid heartbeat and tiredness while emotional symptoms deal with worrying, depression, fear, and lack of focus. In spite of the negative impression we have for anxiety, it is not dangerous in any way whatever. The feeling of anxiety is not bad, in fact it's more of a defensive feeling which protects us from possible danger by engaging a response within us in fight or fight situations. So it's not the "bad guy", you just have to learn how to control it. Panic attacks, however, are far more dangerous and should be a concern to your health. Panic can sometimes result in blurred vision, difficulty in breathing due to a tight chest. The best way to different anxiety from any serious illness is to ask a medical expert for advice on a regular basis. Question: A victim of anxiety attacks may have the symptoms that _ . Yes or no, is the answer "he can't pay attention to what he does"?
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Article: The Red Sea is parting again, but this time no one can help. Satellite pictures show that the Arabian plate and the African plate are moving away from each other, stretching the Earth's crust and widening the southern end of the Red Sea. Last September, series of earthquakes started splitting the planet's surface in Ethiopia. Over a period of three weeks, the sides on the rift separated by 26 feet. "We think that the crust is melted slowly at depths greater than 10 kilometers, where it is hotter, forming molten rock," said Tim J Wright. "This molten rock rises through the crust because it is less dense than the surrounding rock." The molten rock collects at depths of 3 to 5 kilometers. Wright explained, "Slowly, the pressure has been building up until last September when it finally cracked, breaking the crust." The entry of molten rock into the gap between continents, rather than the cracking of the crust, is responsible for separation of continent drifts. For the past 30 million years Africa and Arabia have been going through the continental rifting process, the same one that made the Red Sea part again. "The ground is continually moving---much more rapidly now than before," Wright said. "On average, the two sides move apart at about 2 centimeters per year." This latest split, added to the long-term rifting process could eventually create a huge new sea. Although such processes could take millions of years to occur, this event has given scientists an opportunity to examine the break in real time. Question: The passage is mainly about _ . Yes or no, is the answer "the cause why the Red Sea is parting again"?
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Article: NASA on September 28, 2015 announced the strongest evidence yet for liquid water on the red planet, increasing the possibility that astronauts journeying to Mars could someday rely on the planet's own water for their drinking needs. You may feel like you've heard about the hunt for liquid water on Mars before--and the researchers involved know it may seem played out. But science has yet to truly prove that water flows on Mars once and for all, and doing so could completely change the way we view the planet. This new data is a big step in the right direction. "Liquid water is an attractive topic, and we like the thousandth time someone has discovered water on Mars," Lujendra Ojha, the Georgia Tech PhD candidate who led the research announced Monday, told The Post. But there's a good reason that liquid water is so "attractive": Mars is now the only planet in our solar system to show evidence of the stuff on its surface, other than _ . Other worlds have it in subsurface oceans, or scattered around as vapor in the atmosphere. But Mars is the only place where we have solid evidence for liquid that sits right there in the open air. While it would be a major leap to suggest that Mars might harbor life--even microbial life--liquid water at least makes it possible that parts of the planet are habitable. The study builds on research from April, when scientists using data from the Curiosity rover noted that the planet had the seasonal potential for liquid water. We know that because of the extremely low pressure on Mars, water has a boiling point of just a few degrees Celsius, after which it evaporates. The April study noted the presence of perchlorates --a kind of salt--which could make the boiling point of Mars' water much higher, theoretically allowing it to remain liquid. They affirmed that the planet's temperature would be right for liquid, perchlorate-filled water to form every day during winter and spring. Question: What plays an important role in making Mars' water in the state of liquid? Yes or no, is the answer "Perchlorates in Mar's water."?
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