Read the following article and select the best answer. Article: What are feelings for? Most nonscientists will find it a strange question. Feelings justify themselves. Emotions give meaning and depth to life. They exist without serving any other purposes. On the other hand, many evolutionary biologists acknowledge some emotions primarily for their survival function. For both animals and humans, fear motivates the avoidance of danger, love is necessary to care for the young, and anger prepares one to hold ground. But the fact that a behavior functions to serve survival need not mean that. Other scientists have regarded the same behavior as conditioning and learned responses. Certainly reflexes and fixed action patterns can occur without feeling or conscious thought. A baby seagull pecks at a red spot on the bill of its parent. The seagull parent feeds its baby when pecked on the bill and the baby gets fed. The interaction need have no emotional content. At the same time, there is no reason why such actions cannot have emotional content. In mammals that have given birth including humans, milk is often released automatically when a new baby cries. This is not under intended control but it is reflex. Yet this does not mean that feeding a new baby is exclusively reflex and expresses no feeling like love. Humans have feelings about their behavior even if it is conditioned or reflexive. Yet since reflexes exist and conditioned behavior is widespread, measurable, and observable, most scientists try to explain animal behavior by using only these concepts. It is simpler. Preferring to explain behavior in ways that fit science's methods most easily, scientists have refused to consider any causes for animal behavior other than reflexive and conditioned ones. Scientific orthodoxy holds that what cannot be readily measured or tested cannot exist, or is unworthy of serious attention. But emotional explanations for animal behavior need not be impossibly complex or unstable. They are just more difficult for the scientific method to check on in the usual ways, so cleverer and more... Question: Which of the following can be learned from the passage? - Breast-feeding a baby is conditioned or reflective but have no emotional connection. - Reflexes and conditioning will lead to a better understanding of animal emotions. - Scientists usually apply reflexes and conditioning in explaining animal behaviors. - Many evolutionary biologists believe that emotions are to some degree for survival.
Scientists usually apply reflexes and conditioning in explaining animal behaviors.

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Read the following article and select the best answer. Article: The unknown world's mystry The sea is the biggest unknown part of our world. It covers seventy-one percent of the earth. There is still much to be discovered about this vast blanket of water. If the waters of the ocean could be removed, the sea floor with its wide valleys, irregular mountains and rivers in the sea would be an unbelievable sight. Tourism under the deep blue sea Tourists can now explore the world beneath the waves without ever getting wet. From tourist submarines to underwater dining, undersea tourism is making a big splash. Tourist submarines The popularity of submarine tours has grown rapidly in the last decade. Now, tourist submarines operate in more than 20 locations worldwide, including the waters around Okinawa and Taiwan's Green Island. The submarines carry nearly 2 million tourists each year. Large windows offer passengers spectacular views as the submarines explore colorful coral reefs and sunken ships. Most one-hour tours cost about US $80. Under water dinning For a more upscale experience, tourists can enjoy fine dining under the sea. Last summer the Hilton Maldives Resort opened the world's first underwater restaurant, Ithaa. Diners walk down a staircase into the restaurant, which rests 35 feet beneath the waves of the Indian Ocean. Transparent walls surround the dining area, and you can treat guests to a panoramic ocean view. But this excellent view doesn't come cheap. The tasting menu costs US $200 per person. Be sure to make reservations early, too. The restaurant seats only 14 people. Question: Which of the following statements about tourist submarines is RIGHT? - Tourist submarines only have a history of about 10 years. - There are tourist submarines in every part of the world now. - Tourist submarines have carried about 2 million tourists so far. - People can enjoy tourist submarines in the waters around Okinawa.
(Answer)
People can enjoy tourist submarines in the waters around Okinawa.

Ques: Read the following article and select the best answer. Article: The next generation of smart phone could combine the date from its gyroscopes with a built-in compass to allow you to track your indoor movements even without GPS. Research described it in the international Journal of Innovative Computing and Applications by Shahid Ayub of Lancaster University, and his colleagues there and at HW Communications, suggests that the embedded inertial sensors in many smart phones have added the facility to be used for localization and tracking applications. The primary benefit of using smart phones is that no additional infrastructure would need to be installed for monitoring personnel movements in a wide variety of situations not least staff, equipment and inventory movements in warehouse facilities, shopping malls and factories. In contrast, other technology being proposed would require new equipment,such as RFID technologies. However, smart phones do not yet have the ability to pinpoint their location without recourse to the GPS system, which is not accessible indoors and has the added disadvantage of using up battery power very quickly even if it could be used. Inertial navigation only provides the necessary information to a specified starting point the team says. This is useful for anyone with a non-GPS smart phone who wishes to track the route they take when walking or jogging if they specify their starting point. The team suggests that pedestrians indoors could be positioned using a combination of the smart phone accelerometer and an built-in digital compass, something that will become available in future smart phones. They have now investigated the potential of three different smart phone placement modes: idle, hand held and listening, which could be used with pedestrian dead reckoning (PDR) techniques to allow users to record the path they follow or for various kinds of workplace or other monitoring requirements. "The technique could be used in underground tube stations, airports , train stations where there is no infrastructure installed for tracking or... Question: What is the primary benefit of using smart phones with embedded inertial sensors? - They require new equipment, such as RFID technologies. - They can track pedestrian movement indoors with GPS. - No additional infrastructure would be needed. - No additional money would be spent.
Ans:
No additional infrastructure would be needed.