Pastorela Para Preescolar

14/06/2012

J. Michelle Garcia
6 c N.L 10
Geography

Batteries
Batteries are commonplace in the modern world, powering toys, watches, cell phones, laptop computers, automobiles, andmany other devices. As with other disposable items, however, many people don’t stop to think about what happens to the battery after it’s thrown away. All batteries use chemical reactions to provideelectricity, but there are many different formulas that can be used, each of which lends itself best to a different purpose. Some of these formulas contain hazardous chemicals that should not bedisposed of in a landfill or incinerator with regular garbage. Improper disposal can result in contamination of the soil, water or air with toxic materials. It doesn’t take long to see why recyclingbatteries is very important

What contains a battery?
30% of each battery is composed of toxic elements like mercury, lead, lithium, cadmium and nickel

Lead can damage the nervous system, kidneys andreproductive system. As it degrades, when released to air can’t be transported long distances before settling. It adheres to soil particles and can move to groundwater.

Lithium is a neurotoxin andis toxic to the kidney. May cause respiratory fail, myocardial depression, pulmonary edema and deep stupor. I damage the nervous system to cause coma and even death. Lithium can easily leach and reachaquifers.

Cadmium is a carcinogen that if breathed in high concentrations causes severe lesions in the lungs, ingestion causes kidney damage. At high doses can cause death. Eating food or drinkingwater with cadmium irritates the stomach and induces vomiting and diarrhea. Cadmium enters the air and water from landfills or spills of household waste, and can travel long distances.

Nickeleffects on the skin. Breathing large amounts produces chronic bronchitis, and lung cancer and sinuses. Released into the atmosphere by the burning of waste. In the air, it attaches to dust particles...