A plant requires magnesium for: ?->(Show Answer!)

1. A plant requires magnesium for:

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MCQ-> Read the following passage carefully and answer the questions given below it. Certain words are printed in bold to help you to locate them while answering some of the questions.Long ago, the country of Gandhara was ruled by a just and good king Vidyadhara. His subjects were very happy, but as the king grew older, everyone grew more and more worried because the king did not have any children who could take over the kingdom after him. The king was an avid gardener. He spent a lot of time tending to his garden. planting the finest flowers. fruit trees and vegetables. One day. after he finished working in his garden, he proclaimed, ‘I will distribute some seeds to all the children in the kingdom. The one who grows the biggest, healthiest plant within three months will become the price or the princess'. The next day there was a long queue of anxious parents and children outside the palace. Everyone was eager to get a seed arid grow the best plant. Pingala, a poor farmer’s son. was among the children. Like the king, he too was fond of gardening and grew beautiful plants in his backyard. He took the seed from the king and planted it in a pot with great care. Some weeks passed and he plied it with water and manure. but the plant did not appear. Pingala tried changing the soil and transferred the seed to another pot, but even by the end of three months nothing appeared. At last the day came when all the children had to go to the king to show the plant they had grown. They went walking to the palace dressed in their best, holding beautiful plants in their hands. Only Pingala stood sadly, watching them go by. Pingala’s father had watched his son working hard with the seed and lelt sorry for him. ‘Why don’t you go to the king with your empty pot ?’ he suggested. At least he will know you tried your best So Pingala too wore his best suit and joined the others outside the palace, holding his empty pot in his hand and ignoring the laughter around him. Soon the king arrived and began his inspection, The pots held flowers of different shades, beautiful and healthy. but the king did not look happy. At the end of the queue stood Pingala, and when the king reached him, he stopped in surprise. ‘My son, why have you come with an empty pot ? Could you not grow anything? Pingala looked down and said, ‘Forgive me, your highness. I tried my best, I gave it the best soil and manure I had, but the plant would not grow.’ Now the king’s face broke into a smile. He enveloped Pingala in his arms and announced, 'This boy truly deserves to be crowned the prince! I had given everyone roasted seeds, which would never grow. I wanted to see which child was the most honest one, and would admit he or she would not be able to grow anything. Only this young boy told the truth. I am sure he will rule this kingdom one day with truth and honesty'. And indeed that was what happened. When the king grew old and died. Pingala, who had learnt everything from him, came to the throne and ruled Gandhara justly for many years.Why did the king distribute seeds to all the children in his kingdom ?
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MCQ->Three Vice Presidents (VP) regularly visit the plant on different days. Due to labour unrest, VP (HR) regularly visits the plant after a gap of 2 days. VP (Operations) regularly visits the plant after a gap of 3 days. VP (Sales) regularly visits the plant after a gap of 5 days. The VPs do not deviate from their individual schedules. CEO of the company meets the VPs when all the three VPs come to the plant together. CEO is one leave from January 5 th to January 28 th , 2012. Last time CEO met the VPs on January 3, 2012. When is the next time CEO will meet all the VPs ?....

MCQ->A plant requires magnesium for:....

MCQ-> The passage below is accompanied by a set of six questions. Choose the best answer to each question. During the frigid season... it's often necessary to nestle under a blanket to try to stay warm. The temperature difference between the blanket and the air outside is so palpable that we often have trouble leaving our warm refuge. Many plants and animals similarly hunker down, relying on snow cover for safety from winter's harsh conditions. The small area between the snowpack and the ground, called the subnivium... might be the most important ecosystem that you have never heard of.The subnivium is so well-insulated and stable that its temperature holds steady at around 32 degree Fahrenheit (0 degree Celsius). Although that might still sound cold, a constant temperature of 32 degree Fahrenheit can often be 30 to 40 degrees warmer than the air temperature during the peak of winter. Because of this large temperature difference, a wide variety of species...depend on the subnivium for winter protection.For many organisms living in temperate and Arctic regions, the difference between being under the snow or outside it is a matter of life and death. Consequently, disruptions to the subnivium brought about by climate change will affect everything from population dynamics to nutrient cycling through the ecosystem.The formation and stability of the subnivium requires more than a few flurries. Winter ecologists have suggested that eight inches of snow is necessary to develop a stable layer of insulation. Depth is not the only factor, however. More accurately, the stability of the subnivium depends on the interaction between snow depth and snow density. Imagine being under a stack of blankets that are all flattened and pressed together. When compressed, the blankets essentially form one compacted layer. In contrast, when they are lightly placed on top of one another, their insulative capacity increases because the air pockets between them trap heat. Greater depths of low-density snow are therefore better at insulating the ground.Both depth and density of snow are sensitive to temperature. Scientists are now beginning to explore how climate change will affect the subnivium, as well as the species that depend on it. At first glance, warmer winters seem beneficial for species that have difficulty surviving subzero temperatures; however, as with most ecological phenomena, the consequences are not so straightforward. Research has shown that the snow season (the period when snow is more likely than rain) has become shorter since l970. When rain falls on snow, it increases the density of the snow and reduces its insulative capacity. Therefore, even though winters are expected to become warmer overall from future climate change, the subnivium will tend to become colder and more variable with less protection from the above-ground temperatures.The effects of a colder subnivium are complex... For example, shrubs such as crowberry and alpine azalea that grow along the forest floor tend to block the wind and so retain higher depths of snow around them. This captured snow helps to keep soils insulated and in turn increases plant decomposition and nutrient release. In field experiments, researchers removed a portion. of the snow cover to investigate the importance of the subnivium's insulation. They found that soil frost in the snow-free area resulted in damage to plant roots and sometimes even the death of the plant.The purpose of this passage is to
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