Ozone Layer Depletion: Effects and Causes of Ozone Depletion Ozone is a colorless gas found in the upper atmosphere of the Earth and formed by the action of ultraviolet radiation on oxygen. Ozone forms a layer in the stratosphere, which protects life on Earth from the harmful effects of ultraviolet radiation. Ads by Google Olay Total Effects 1 Bottle Fights 7 Signs of Ageing, Try Olay Total Effects Today! www.olay.in Today, one of the most discussed and serious environmental issues is the ozone layer
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Delos Reyes Jalel Pasbal Maureen Suganob Nel Joshua Turaray Laureen Suganob Reed Elcen Lumbay II – Objective This project aims to produce a pH indicator strip made from rose petals. The researchers want know if the rose flower is an effective acid-base indicator and if it would be precise when used to identify the pH levels of household items. III – Introduction Normally, pH indicator strips such as litmus paper are the ones used in indicating the pH level of a substance. pH is the measure
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i Apply the cucumber juice on skin will frees the pores and make the skin soft b Placing cucumber slice over the eyes can reduces swelling ii Ascorbic acid and caffeine acid that contain in cucumber prevent water retentions that are helpful to swollen eyes (Juliet, 2010) 2 Acts as the most effective moisturizer for skin (Amruta, 2010)
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Acids and Bases Acids: Properties: Sour taste Change color of acid-base indicators Release hydrogen gas React with bases to produce salt and water Types: Binary acid: only two elements; hydrogen and another one (HF, HCl) Oxyacid: Hydrogen, oxygen, and a third element (HNO3, HClO) -Sulfuric Acid: dehydration, burning -Nitric Acid: Very volatile, used to make plastics -Phosphoric Acid: fertilizers -Hydrochloric Acid: digestion -Acetic Acid: synthesize chemicals. Bases: Properties: Bitter
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Acids and Bases Introduction Organisms are often very sensitive to the effect of acids and bases in their environment. They need to maintain a stable internal pH in order to survive – even in the event of environmental changes. Many naturally occurring biological, geological, and man-made chemicals are capable or stabilizing the environment’s pH. This may allow organisms to better survive in diverse environments found throughout the earth. In this investigation, you will test a number
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How the temperature, dissolved oxygen, and pH differ from the wetland vs. the stream ABSTRACT: This study examined the temperature, dissolved oxygen level, and pH level in wetland water and stream water. It was predicted that the dissolved oxygen would be higher in the stream because of its moving water. The temperature in the wetland will be higher because the sun is directly on it. Testing six tubes from both the wetland and the stream, findings show the temperature did indeed prove to be higher
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that acidosis or alkalosis will not manifest, three major physiological control systems exist within the body. The first mechanism involves a buffer system for the hydrogen ion fluctuations. All bodily fluids are supplied with acid-base buffers which combine with any acid or alkaline substance and prevent excessive change in the hydrogen ion concentration. Another mechanism the body uses to maintain normal pH is within the respiratory system. When the hydrogen ion concentration (H + ) changes measurably
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lukewarm water and swirl the mixture until the salt dissolves completely. Gargling with this mixture will also help you keep a healthy mouth. 3. Brush with Baking Soda Baking soda contains hydrogen peroxide which neutralized the acid present in your mouth. Acids make for a favourable environment for bacteria growth in your mouth. Simply wet you toothbrush and sprinkle some baking soda over it to brush your teeth. 4. Eat Apples Apples are often called as nature’s toothbrush as they are known
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that three brands of fertilizer (Fertifun, Big Grow and Soakem) are available that provide Nitrogen, Phosphoric Acid and Soluble Potash to the soil. One bag of each brand provides the following units of each nutrient: F ertif un BigGrow Soakem N itrogen 1 2 3 3 1 2 P hosphoric Acid P otash 2 0 1 Suppose the soil of Dong Nai farm needs 18 units of nitrogen, 23 units of phosphoric acid and 13 units of potash per acre. The corresponding units for An Giang are 31, 24, and 11. How many bags of each
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bit of water could suffice) or o (ammonia with water rinsed with vinegar and water) or o (3 teaspoons of clear regular dishwashing liquid, ¼ cup ammonia, ¼ cup vinegar, water) or o (extremely Hot water only) (with club soda on stains) o Acid stains: Acid spills, such as drain cleaner or vinegar, demand quick action. Dilute them immediately with baking soda and water or with club soda. Then apply a solution of ammonia (1 part) and water (10 parts). Rinse with cold water, let dry, and vacuum gently
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