As natural sand spit stretching south-west to north-east across the entrance to the Exe estuary in Devon, Dawlish has played a very important role in protecting the West Country railway line and other places from being attacked by the strong sea wave and flooding (Environment Agency, 2015). According to Environment Agency (2015), since the narrow part of Dawlish Warren stands at a greater risk of being breached by strong sea waves and rising sea level, the breaching would lead to the flooding of
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Have you ever made a boat that holds marbles? The activity we were given, had us build a boat to hold marbles. We only got certain materials and limited time. In this challenge we were only given a few supplies, our first plan did not use all the items. We started with paper. We folded the yellow paper in a semi-circle, then we taped two normal sized straws to the yellow semi-circled folded paper. Then we blew up two quart sized zip-lock bags. Then we tested our plan and it did
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faster rate than the dry sand, according to Table 1. The range of the wet sand was 11 degrees compared to the range of the dry sand which was 6 degrees. However, it was expected that the wet sand would heat up at a slower rate than the dry sand because water retains heat longer than other substances. Despite the wet sand heating up at a faster rate, the wet sand did not exceed the temperature of the dry sand. At the end of the 20 minutes, the wet sand was 29 degrees and the dry sand was 31 degrees. This
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dangerous and has many downsides. Farmers should try to save and use other sources of water and overall stop the use of groundwater. If we keep using ground water at this paste then we will eventually run out and the ground will continue to decrease. Making a law will allow the ground to renew itself. California needs to limit the amount of groundwater by making a law to force farmers to try to save the water and use desalinization and stormwater harvesting. California does not know how much groundwater
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we did not do the behavior in acid test, we could possibly confuse the salt with the sodium nitrate visibly, or with the baking soda as it does not react with water or iodine either. After the appearance test, the behavior in water test was least useful as none of the given substances other than cornstarch changed with the addition of water. The crystal shape, behavior in acid, and behavior in iodine test were the most helpful tests. None of these three tests can be labelled as most helpful as they
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that we breath to daily weather and climate patterns. It covers 71 percent of our planet and holds 97 percent of the Earth’s water, but more than 95 percent of it remains unexplored. The deeper waters remain a mystery even though we are increasingly relying more on these areas for resources. Ocean exploration is a fundamental step to reducing the unknowns about our waters. Findings made through it can reveal new sources for medical drugs, food, energy resources, and other products. It can also help
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environmental factor? This village has several environmental factors, which puts the inhabitants at risk. These factors may be categorized as unaltered factors, altered factors, and built factors. Unaltered environmental risk factors include mosquitoes, bad water, mold from the land slide, and goiters from lack of iodine in the soil. Altered environmental factors include, improper pesticide use and malaria and hook worm for those who work in the farm. Built environmental factors include bad ventilation and
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lowering the core temperature of the pinnipeds. Based off of a study by Pierotti in 1980 the rate of radiant heat loss on land at -30°C was calculated to be roughly equivalent to the rate of heat loss in water at 0°C, and at -40°C the radiant heat loss was approximately 20-30% greater than the water. With this data one might question why the pinnipeds choose to reproduce in the winter as opposed to the summer. The reason is simply because of stability, when the pups are born they only have a thin fat
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Purpose: Scientists use chromatography to determine whether a substance is a mixture or a pure substance. A chromatograph separates the chemical components of a mixture so each part can be observed separately[1]. The purpose of this lab is to test six different inks to see if they are pure substances or mixtures. This lab also teaches how to identify a pure substance versus a mixture, and the process of using a chromatograph. To perform this lab, a piece of filter paper, a paper wick, alcohol
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Reflux is used to help carry a reaction to completion because the starting reagent has a slow reaction time. The purpose of reflux is to increase the reaction rate by boiling, but not to vaporize the products due to the low boiling points. The mixture of the starting material were heated first under reflux by increasing the rate of reaction through heating with a condenser attached because the temperature can be controlled while the condenser preserves the reagent by chilling the vapors. At the end
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