Consequences of greenhouse-effect temperature rises Predicting the consequences of global warming is one of the most difficult tasks for the world’s climate researchers. This is because the natural processes that cause rain‚ hail and snow storms‚ increases in sea level and other expected effects of global warming are dependent on many different factors. It is also difficult to predict the size of the emissions of greenhouse gases in the coming decades‚ as this is determined to a great extent by
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Red light cameras are becoming a more common sight in the last decade. The debate on whether these cameras are improving the safety of drivers or just causing another financial burden to the states is still as strong as ever. These red light cameras are saving lives and not imposing unnecessary costs on states‚ but instead the cameras are saving states millions of dollars each year. In 2007 it was recorded that each year 751 people die in crashes due to someone running a red light‚ which comes to
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The Greenhouse Effect Rationale The “Greenhouse Effect” is a term that refers to a physical property of the Earth’s atmosphere. If the Earth had no atmosphere‚ its average surface temperature would be very low of about 18℃ rather than the comfortable 15℃ found today. The difference in temperature is due to a suite of gases called greenhouse gases which affect the overall energy balance of the Earth’s system by absorbing infrared radiation. In its existing state‚ the Earth atmosphere system balances
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Red light runners cause hundreds of deaths and tens of thousands of injuries each year. In 2009‚ 676 people were killed and an estimated 130‚000 were injured in crashes that involved red light running. About half of the deaths in red light running crashes are pedestrians‚ bicyclists‚ and occupants in other vehicles who are hit by the red light runners. An Institute study of urban crashes found that those involving drivers who ran red lights‚ stop signs and other traffic controls were the most common
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The idea of an ocean’s surface with a red hue may seem like a very amazing phenomena but in fact it’s quite the opposite. Red tides are becoming more and more harmful to not just the sea life it’s consumes but to us humans as well. When we use pesticides and other man made chemicals‚ we are washing them away without a care of what happens next. In doing so‚ they are eventually ending up back into our oceans and cause these harmful algal blooms‚ known as Red Tide. Most of these algal blooms are toxic
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Investigation 5: Photosynthesis Problem: If the leaf disks are treated in a way you know increases the net rate of photosynthesis‚ should they start to float faster or slower? Why? Hypothesis: If the leaf disks were bathed in a red light source‚ then the rate of photosynthesis would increase than leaf disks that are bathed in a regular light source because chlorophyll absorbs red pigment and reflects green pigments. Therefore‚ shining a red light source onto the leaf disks would cause them
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Photosynthesis Matt Lazar 5/13/96 8th Hr. When you and me eat‚ we find our food. When plants eat‚ they make their own food and energy. They make their food and energy through a process called photosynthesis. Through photosynthesis oxygen is also produced. Photosynthesis is "a process in which green plants synthesize carbohydrates from carbon dioxide and water....The reverse of this reaction provides energy for plants‚ for animals that eat plants‚ for animals that eat animals that eat plants"
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Red Light Cameras Red light cameras were designed to protect law-abiding citizens from those who take risks in running red lights. Without having the man power to sit on a corner twenty-four hours a day seven days a week‚ it would be physically impossible to catch violators who felt they could get away with running lights in the middle of the night and not get caught. Many people feel the use of red light cameras violate personal rights and Constitutional rights. The purpose of having red light
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covers assessment criteria 5 and 6 The Photoelectric effect‚ and the Production of Light In 1887 Hertz discovered the photoelectric effect‚ where electrons were emitted from a zinc surface when illuminated with ultra-violet light. These electrons (called ‘photoelectrons’) were only emitted when the frequency of the ultra-violet light was above a certain value (called the ‘threshold frequency’). Criteria 5c Assume that ultra-violet light is falling onto a piece of zinc‚ and photoelectrons are
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Introduction: The rate of photosynthesis varies greatly with changes in wavelengths of light. Light’s colour is determined by its wavelength of light‚ and thus it is possible to devise an experiment to determine which wavelengths of light are most productive for photosynthesis than others. In this experiment I use a plant called Elodea (pond weed). Elodea is native to North America and it is also widely used as aquarium vegetation. The basic structure of these plants are whirls of leaves around
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