Monday, April 15, 2019

Certain chemicals Essay Example for Free

Certain chemicals EssayIf the carry through of plate tectonics were to completely lodge then the ability of the Earth to create mountains by dint of the collisions of two different plates would stop as well. This would recollect that erosion would last abrade these mountains and the amount of sediment created by this activity would eventually reach the numerous oceans and seas. The end result would be a rise in sea level that would eventually deglutition up the entire knowledge base mass of the Earth and sort of global ocean would be created as a result (sprightliness in the universe 2001). This would of course mean the extinction of all the land base species on the protrude of the planet. B. ) Weathering aids initiate the erosion of rocks, top domain or other exposed surfaces of the Earth through either changes in the climate or weather conditions while erosion on the other workforce deals in the transport of small rocky material after weathering has broken it down (B oardsman 2002). These two processes encourage to release valuable minerals in the soil which faeces be carried transfer to the sea to nourish it or to create land suitable for plant life (Boardsman 2002).Not only that but it is these two processes that champion to regulate the landmass on the planet brought about by plate tectonics which creates new land masse. If erosions and weathering stopped the seas and oceans would non be able to get the valuable nutrients they need to support life and the surface of the Earth would be filled with massive mountains that would make it hard to live on. 2. Evaluate the following statements A. We should not get worried about picture show to toxic chemicals because al close all chemical at a high dosage can cause harm.This statement is false. Certain chemicals at even low dosages can be fatal to human beings. For example if ingested even in tiny drops arsenic is fatal to most people and can cause an extremely painful death within hours (Gilb ere 2008). Another example is sulphuric acid which can kill a person if splashed on the wrong bea of the body. in that location is actually a wide variety of chemicals in the world today that dont rely on intensiveness to kill as much(prenominal) a person should take caution when they handle, ar near to or have been splashed by any sort of chemical (Gilbere 2008). B.We should not worry about exposure to UV light and toxic chemicals because though transmissible adaptation, we can develop immunity to such chemicals/UV light. Genetic adaptation takes millions of years to accomplish as such overexposure today for a person without meet protection can lead to skin cancer, a variety of skin diseases, a bad sunburn, heating stroke or a variety of other maladies that affect a persons health (Guhl 2005). As such the presend multiplication or even the next 10 generations would not be able to get from any developments in genetic adaptation overdue to the time evolve.Due to this peo ple should be wakeful of their exposure to UV light and must take precautions in order not develop any skin related problems. C. We should not worry about exposure to toxic chemicals because we can use genetic engineer to reduce our susceptibility to the effects of toxic chemicals. Genetic engineering can only do so much when it comes to developing electrical resistance to certain types of chemicals. Not only that since the process would take an fabulously long period of time due to the current level of technology but the present generation or even the one after that would not be able to benefit from it.Genetic engineering can only do so much to build up a natural resistance to an fake substance for example strong acids can even melt rock imagine what it could do to flesh no matter how genetically improved it may be. Artificial substances and natural substances by their very(prenominal) nature argon polar opposites as such there will always be an artificial substance that can harm a natural one no matter the level of gain it has undergone (Gilbere 2008). Part 2 1. Which is a better choice at the grocery store account bulge out? Plastic bag? Or tissue bag?Explain your respond None of the choices given are better choices. Paper, plastic or even tissue bags still represent the use of materials that will eventually fill up landfills and cause pollution. Paper bags are sources from trees as such their use and production way that trees which could have absorbed the carbon dioxide in the atmosphere or provided support for loose top soil to prevent landslides are instead used to hold groceries. Not only that but paper bags are comfortably destroyed through either physical force or liquid substances.As such their reusability is rather unreliable under the vanquish of circumstances. One recurring myth is that recycled paper bags actually help the purlieu unfortunately this is not true as it may seem. The trucks used to transport paper to the cycle centers , the chemicals used to remove the respective dyes from the paper as well as to sanitize it combined with the process of boiling, process and drying actually uses up more resources and leaves a larger carbon and chemical footprint than processing an average tree into paper.Plastic bags on the other hand are more durable than paper bags and are easily reused for other purposes such as trash bags, holders or covers unfortunately though in the end they are still thrown away and unlike their paper counterparts do not dissolve down in the environment as easily and when it comes to recycling also uses up more resources to obtain than the average plastic bag. Tissue bags on the other hand are just as easily destroyed as paper bags and are just as expensive to recycle.The best choice would be to bring a cloth bag. The are sold or even given away for detached at most department stores, they can be used for several(prenominal) years at a time and not only that they are more easily broken d own in the environment as compared to plastic bags. 2. Explain how fossil fuels are formed? Fossil fuels are formed when organisms such as algae zooplankton, phytoplankton as well other organisms die settle on the sea floor.extra time when clusters of these organisms are covered by sand and silt and the conditions are just right their organic social system starts to break down after several million years the end result is a sinister liquid material that is processed by refineries and turned into modern day gasoline. The reason its called fossil fuels is due to the fact that a fossil, by definition, is the remains of a dead organism and that is what fossil fuels are. 3. Is it ever achievable to be completely healthy?While it is possible through a healthy diet and comely exercise to attain a healthy body for an extended period of time there are setbacks that happen that prevent people from being completely healthy. For example a person who tried his/ her best to be healthy through dieting or exercise can never prevent his/herself from promise a disease, virus, sickness etc. No matter who the person is they will get sick several times over the course of their life and as such can never be classify as completely healthy (Brian 2009).4. Can we design buildings or houses that save energy? Explain your answer Yes buildings that can save energy can be designed to saved energy can be made and are actually in existence. A lot of houses these days have an insulating material installed halfway the outer and inner wall of the house. When winter comes along this insulating material helps to keep heat in and refrigerant out thus saving on heating bills. Another example is the use of solar panels on the roofs of houses.These days the use of solar energy panels has been advertised as a means to save electrical energy and to even make money off of since any excess energy produced can be sent into the local power grid and the homeowners of the solar powered house can mak e money off of the power company while saving energy at the same time (Flin 2006). List of References Life in the Universe. (2001). Platetectonics. Retrieved on May 19, 2010 from http//www. lifeinuniverse. org/Platetectonics-05-02-01. html Gilbere, Gloria. TOTAL HEALTH MANAGEMENT Requires Conscious LivingNot Getting-by on Auto-pilot. gist Health 30. 2 (2008) 48-50 Flin, David. Hot shots solar powered home. Power Engineer 20. 3 (2006) 16-19. Brian, Sarah Jane. making a of difference. pedant Parent Child 16. 7 (2009) 38-42. Guhl, Sven, et al. Bivalent Effect of UV Light on Human climb Mast CellsLow-Level Mediator Release at Baseline but Potent Suppression Upon Mast Cell Triggering. diary of Investigative Dermatology 124. 2 (2005) 453-456 Boardman, John. The need for soil conservation in Britain revisited. Area 34. 4 (2002) 419-427.

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