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Article: Orcas, or killer whales, are the largest of the dolphins and one of the world's most powerful animals feeding on meat. They feast on marine mammals such as seals, sea lions, and even whales, employing teeth that can be four inches (ten centimeters) long. They are known to grab seals right off the ice. They also eat fish, squid , and seabirds. Though they often frequent cold, coastal waters, orcas can be found from the polar regions to the Equator . Killer whales hunt in deadly groups, family groups of up to 40 individuals. There appear to be both permanent and temporary group populations of killer whales. These different groups may hunt different animals and use different techniques to catch them. Permanent groups tend to prefer fish, while temporary groups target marine mammals. All groups use effective, cooperative hunting techniques that some are similar to the behavior of wolf packs. Whales make a wide variety of communicative sounds, and each group has various noises that its members will recognize even at a distance. They use echolocation to communicate and hunt, making sounds that travel underwater until they meet objects, then reflect back, showing their location, size, and shape. Killer whales are protective of their young, and other adolescent females often assist the mother in caring for them. Mothers give birth every three to ten years, after a 17-month pregnancy. Killer whales are immediately recognizable by their special black-and-white coloring and are the intelligent, trainable stars of many aquarium shows. Killer whales have never been widely hunted by humans. Question: Killer Whales do not feed on _ . Yes or no, is the answer "seaweeds"?
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Yes

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Article: You've probably heard of Marco Polo, but how much do you actually know about him and his incredible journey? Marco was the original travel writer, whose trade contacts with Asia changed Europe, opening it up to new ideas and cultures. Marco Polo was born in the Venetian Republic around 1254.At the time, Venice was one of the most powerful trading cities in the world, and was ruled as an independent city state.Marco's mother died when he was young, so he was brought up by his aunt and uncle.When Marco was born, his brother (Maffeo) and father (Niccolo), who were successful merchants, were away on a trading voyage.They didn't get back until Marco was about 15. In 1271, Niccolo and Maffeo set off again for Asia, this time taking Marco with them.On a previous journey they'd met Kublai Khan (the Yuan Dynasty), and they were keen to establish trade links between Kublai's empire and Venice.The Polos sailed across the Mediterranean to Acre (now in northern Israel).Then, they traveled by camel to the port of Hormuz in the Persian Gulf.Their plan was to sail to China but they couldn't find any good boats.So, they continued the journey overland, finally meeting Kublai Khan at his summer palace in Xanadu, about 275 kms north of modern Beijing.Marco was now probably 21 years ol The journey had taken over three years. The Polos had learnt a great deal about the world during their travels and so Kublai employed Marco as a government official.This gave Marco the opportunity to travel around much of Kublai's empire in China.In fact, Kublai found the Polos so useful that he was unwilling to let them return home.However, in 1292, the Polos eventually left, sailing from China and ending up in Hormuz again.The journey was extremely dangerous: of the 600 travelers who set off, only 18 arrived in Hormuz, including all three of the Polo family. The Polos finally returned to Venice in 1295, twenty-four years after setting off.They had traveled 24,000 kms.By this time Venice was at war with Genoa, its trade rival.Unfortunately for... Question: The passage is most probably taken from _ . Yes or no, is the answer "a history book"?
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No

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Article: Almost every child is scared of something, from monsters in the cupboard to dogs in the park. But the fact that such fears are common and normal doesn't mean they can be taken lightly. Kids experience fears and phobias much more strongly than adults. And the influence of the fear can be physical as well as psychological . It can build up so they almost seem scared of everything--a kind of childhood anxiety. Dr. Creswell says: "Your child may always seem to expect the worst to happen and lack confidence in his or her ability to deal with any challenge." So don't make the same old mistake of treating them as if they're silly for being a"scaredy cat". Handling the fears is essential. Children can be born nervous and, if you have such a baby, you'll tend to prevent them from getting worried. So if they fear dogs, you'll keep them away from dogs, but in fact that can just confirm to the child that dogs are scary. What is worse, keeping your child away from what they fear can turn that feeling into a phobia. Instead, you should encourage them to get in touch with the thing they fear, in a safe and supportive environment. Dr. Andy Field, a researcher of childhood fears, says: "You shouldn't force, for example, a dog anxious child to go up to a dog. But you can approach it yourself, show them there is nothing to be afraid of, stroke( ) it, and talk about the dog being friendly. Once your child dares to stroke a dog-one that's good with children, of course---then you should encourage them to carry on until they feel calmer, and reward them for'being brave'." Question: According to Dr. Andy Field, if a child is afraid of a cat, parents should _ . Yes or no, is the answer "show the child how to approach it"?
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No