from incandescent light bulbs to compact fluorescent light bulbs. When an incandescent light bulb is turned on‚ only ten percent of the electricity used is turned into light. The other ninety percent is wasted as heat. On the other hand‚ compact fluorescent light bulbs use seventy to seventy-five percent less energy than incandescent light bulbs and they last up to ten times longer than incandescent bulbs. For instance‚ by using a 26-watt compact fluorescent light bulb‚ which is equivalent to a 100-watt
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Pollution and its Negative Effects Pollution is the degradation of natural environment by external substances introduced directly or indirectly. Human health‚ ecosystem quality and aquatic and terrestrial biodiversity may be affected and altered permanently by pollution. Pollution occurs when ecosystems can not get rid of substances introduced into the environment. The critical threshold of its ability to naturally eliminate substances is compromised and the balance of the ecosystem is broken.
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Conclusion In this experiment I tested different light intensities. I tested a normal fluorescent light bulb‚ a 100-watt light bulb‚ a 25-watt light bulb‚ and a 15-watt light bulb. I was surprised to find that the control plant grew the most at 135 mm. The 100 watt plant grew the least at 0 mm due to the fact that it fried the plant. The 25 watt plant grew the next highest at 120 mm. The 15-watt light bulb grew tall fastest‚ but then slowed down and stopped at 98 mm you would want to use this
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1‚000 hours or close to 33 months. This seems like a long time‚ but when used for only a few hours a day that life span gets cut down substantially. Fluorescent light bulbs‚ on the other hand‚ have a much longer expected life span and are much more efficient than incandescent light bulbs. Their life span can reach up to 24‚000 hours. Fluorescent light bulbs use gasses on the inside of the bulb to light up. When electrical current is applied to the
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Conservation of Natural Resources Introduction: Humans have always made use of other species. Most wild species are found in areas where people live. This is either because people want to gather natural resources from there or they put their life to risk for purpose. Over the last 10‚ 000 years our food has come increasingly from cultivated plants and animals. This has resulted in the rapid increase in human population. The wise and smart use of the earth’s resources by humanity is termed as
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green is to save energy. A. To save on heating and cooling costs‚ set your thermostat a few degrees lower in the winter and a few degrees higher in the summer . B. Install compact fluorescent light bulbs when your older incandescent bulbs burn out‚ but make sure to recycle the fluorescent bulbs when bad because they contain mercury which is bad for the environment C. Wash clothes in cold water whenever possible. As much as 85 percent of the energy used to machine
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BUYING BUILDING MATERIALS Building a new house‚ or making additions to your existing house can be an expensive project. Y need to plan carefully where you ou will find suitable and affordable materials closest to your plot. STEPS TO FOLLOW BEFORE SELECTING BUILDING MATERIALS Step 1 Step 2 Step 3 Step 3 Step 4 Prepare a plan for your alteration or addition. Use your plan to list what building materials will be needed for the job. Workout the amount (quantity) of each type of material that is needed
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Torres‚ Juan ENC1101—03 Professor Trolinder December 5‚ 2013 Misconceptions of Wal-Mart In the 1990’s most families made a dollar stretch due to lower inflation changes. As gas prices sky rocketed‚ in the 2000’s‚ families felt trapped‚ thriftier‚ and scrapping for pennies to shop for groceries. Present day Wal-Mart has given all families a way around large corporations that control prices. As a result‚ Wal-Mart has given a second chance on living the American dream and stretching a dollar
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spring‚ autumn and winter‚ affects the transpiration rate in a mangrove plant. To do this we had to set the 4 different beakers at different lengths apart‚ each beaker (from beaker 1 representing summer) placed further and further away from the desk lamp‚ beaker 4 representing winter. The weight of the plant was then measured to evaluate the transpiration levels and which season of the year fluctuates in transpiration levels. Introduction: The experiment conducted between the members of my group and
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sources and cut back on the pollution in our community are as follows: walk‚ use public transportation‚ car pool or ride a bicycle car emission account for about 60 percent of the pollution in the air according to the EPA Agency. Use the newer fluorescent light bulbs that last longer that the regular incandescent light bulbs and now they are only a few cents more and you will save more money because the bulbs last up to ten times longer than the regular bulbs. Another way to conserve energy is to
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