have to face with is the size of ozone layer. The ozone layer that protects the Earth’s surface from harmful ultraviolet radiation is damaged by CFCs (chloro-fluorocarbons). CFCs are substances that come from refrigerators‚ aerosol cans and other products. When we use this products‚ we free CFCs which go into the atmosphere and destroy the ozone layer which protects us from ultraviolet radiation. The smaller the ozone layer the stronger the radiation which leads to skin burning and some serious
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emitted by the eye making contact with an object. | Huygens | Light is a wave. | Dual Nature | In modern theory‚ Light has a dual nature; part particle and part wave. | R.M.I.V.U.X.G. | Radio waves‚ microwaves‚ infrared waves‚ visible light‚ ultraviolet rays‚ gamma rays. | Energy in an Electromagnetic Wave | Energy is part electric and part magnetic. | DO NOT Pass through Light | Infrared and Ultra-violet light do not pass through glass while visible light does. | Resonance on Glass | Electron
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The Figure 6-18 in my text book was an example of an electromagnetic spectrum‚ which is all wavelengths of light both seen and unseen (Trefil & Hazen‚ 2010). The display of the electromagnetic spectrum showed gamma rays‚ X-rays‚ ultraviolet light‚ infrared‚ visible light‚ microwave‚ radio waves‚ as well as a visible spectrum wavelength (Trefil & Hazen‚ 2010). The diagram shows at what frequency and wavelength each wave moves and what it allows us to see‚ hear‚ and feel with visible light
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protective measures of this vanishing layer. The chlorofluorocarbon and the halons are potent ozone depletors. One of the main reasons for the widespread concern about depletion of the ozone layer is the anticipated increase in the amounts of ultraviolet radiation received at the surface of the earth and the effect of this on human health and on the environment. The prospects of ozone recovery remain uncertain. In the absence of other changes‚ stratospheric ozone abundances should rise in the
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by spotting it ten times. Afterwards‚ the precoated thin layer chromatography plate was placed inside the closed beaker with 15 milliliter of dichloromethane-hexane and filter paper. The chromatography plate was removed; it was visualize under ultraviolet light; then‚ retention was measured at each components. Therefore‚.... INTRODUCTION Chromatography can be explained as the separation of mixture into different fractions by disseminating into different phases‚ one being stationary and the
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Melanoma is a very serious type of skin cancer that can be caused by being exposed to ultraviolet rays. In most cases‚ these ultraviolet rays usually come from the sun‚ but they can also come from other artificial sources such as tanning booths (1). Exposure to ultraviolet rays damages your skin‚ but it usually takes several years before this damage leads to health problems such as melanoma (1). The skin is made up of three layers which are the epidermis‚ the outer layer of skin‚ the dermis‚ which
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Analysis & Discussion The primary objective of this investigation was to test ultraviolet radiation as an alternative disinfectant for Acanthamoeba in its more resistant cyst form. A previous study had already shown that multipurpose solutions were ineffective compared to hydrogen peroxide based systems at eliminating Acanthamoeba trophozoite contaminations.5 This was a follow-up to that study. Another goal of this study was to test the effectiveness of hydrogen peroxide in eliminating
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slow reaction and the proteins can irreversibly denature. The BCA assay‚ is also a slow reaction and requires more time ranging from 40minutes to 24hours. Question 8: UV absorption can determine protein concentration‚ most Proteins‚ absorb ultraviolet light relatively strongly. It is the amino acids in the proteins that absorb the UV light. The strong absorbance of UV light by protein allows for rapid analysis of protein samples. The optical absorbance of protein is measured at 280 nm. At
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Subcutaneous Tissue - layer of fat and connective tissue that stores larger blood vessels and nerves -. regulates temperature of the skin and the body. Sunburn healing process -When skin is exposed to the sun for extended periods of time‚ ultraviolet rays kill and dry out the skin cells on the outer layer of skin. -UVA rays deeply penetrate the dermis and damage tissue‚ more long term (like skin cancer) / UVB rays more likely to cause more immediate burns -skin starts to quickly repair itself
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INTRODUCTION Robert. C. Gallagher once said: “Change is inevitable- except from a vending machine.” “Change” is the word the practically governs our world today. Everything is slowly and gradually changing‚ new technologies and opportunities boosting everywhere. But the underlying question which we all wishfully choose to ignore is “All the changes happening is for good only?” Ellen Glasgow once said: “All change is not growth‚ as all movement is not forward.” Such are the changes going on
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