Q. How can we remove the causes of hunger in the world today? At the end of World War II public officials and scientists from all over the world predicted that‚ with advances in modern technology‚ it would be possible by the end of the century to end poverty‚ famine‚ and endemic hunger in the world. Today these optimistic projections have been replaced by hopelessness and resignation as perhaps one-fifth of the world’s peoples live in absolute poverty with incomes of less than $700 a year. The
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determining if the colour of ice affects its melting rate. Ice melts by taking in energy from its surroundings to form heat. This makes the molecules in the ice cube vibrate. As the overall vibration increases‚ the water molecules split from each other turning the ice from a frozen state to a liquid state. Heat can be absorbs in two different ways‚ through direct contact with a hot surface or through radiation of a hot surface nearby. Radiant heat can be contributed by sunlight‚ fires and even a warm
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The effects of environmental temperature on respiration rates of mice were observed in this experiment. I hypothesized that when environmental temperature decreased‚ the respiration rate of mice would increase. I predicted that if environmental temperature decreased‚ the respiration rate of mice would increase. The respiration rate of the endotherm was measured using the Qubit/Vernier system and the S152 CO2 gas sensor‚ a device that measured the CO2 concentration in the air. The independent variable
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Chemical reactions can happen slowly or fast. The speed of the reaction rate can be changed. Some of the factors that can affect the reaction rate are surface area‚ temperature‚ and concentration and pressure. Surface area is the exposed‚ outer layer of a solid. Increased surface area increases reaction rate because more particles on the surface of a solid come in contact with the particles of another substance. For example‚ if you place a donut stick into water‚ the donut will react slowly with
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How entrepreneurs can contribute to the economic development of a country? i) Entrepreneurs can promote capital formation in a country - Entrepreneurs need money to set up and run their firm. To do that‚ they will need to borrow or employ their own resources or money. This will cause money to be channelled to help the country’s economy as an economy will only thrive when there is money circulating in the economy of a country. ii) Entrepreneurs can create employment opportunities to the public
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response to life. It improves our existence by enhancing‚ changing and perpetuating our cultural composition. “The great artist knows how to impose their particular illusion on the rest of mankind‚” proclaimed Guy de Mauspassant. Art improves our lives by directly and indirectly lift the morale of individuals‚ creating unity and social solidarity. Art creates awareness of social issues. Art may express and reflect the religious‚ political‚ and economical aspects of cultures. Art is and can be what ever a
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How to improve your conversational skills Hello friends. A very good morning to all of you. Today I’m going to speak on ‘How to improve your conversational skills’. The feeling of being tongue-tied is familiar to many of us. We admire people who can express their thoughts with fluency and confidence. Some people think that a conversational skill is a gift‚ while others believe that this is the result of training. A blabbermouth monopolizes the conversation‚ turning it into a monologue
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only catalyse one specific chemical reaction‚ speeding up the reaction by lowering the activation energy‚ the energy required to start a chemical reaction (2). At high temperatures and with various mechanical forces or chemical treatments‚ proteins can denature causing it to lose its conformational features and hence its ability to function. The enzyme examined in this experiment‚ rennin‚ is derived from the stomachs of calves‚ lambs or goats before consumption of anything but milk. Rennin is initially
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Zhang Course Name: ELCM 211 Assignment Name: Ecommerce and Social Commerce Topic: How can social media be used to improve customer care? How can organisations improve their advertising and marketing strategies as a result? Give examples. Word Count: 1347 words excluding references Date: 11 April 2013 How can social media be used to improve customer care? How can organisations improve their advertising and marketing strategies as a result? Give examples. Customer care
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auto-immune disease- once the bacteria becomes active/the person becomes infected it can drastically decrease a person’s immunity. The main concern at the conference is that if a proper and effective treatment isn’t found for the drug resistant cases of TB and the MDR-TB cases‚ that it could increase to pandemic proportions. Without successful treatment and maintenance of TB at it’s manageable strain‚ it can potentially put over 200‚000 lives at risk of being lost‚ and billions of dollars spent
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