Rehabilitating+lakes-Hodo

[] **Rehabilitating lakes** =Many years ago water in the lakes wasn’t as dangerous to drink as it is now. Emission of sulphur oxide and nitrogen oxide are largely responsible for the acidification of Ontario’s lakes. The oxides are acidic, and cause acid precipitation. Because of the high level of acid in the waters only the strongest acid tolerant organisms survive. = = = =Acid rain is the main problem which increases the level of PH in the lakes making it more acidic. = = This is the Ph level diagram.= = = =A factor that helps offset the effects of the acid precipitation is the type of rock beneath the lake. Much of the surface rock of southern Ontario is limestone (mostly calcium carbonate, caCO3). An important characteristic of limestone is that it reacts slowly with acids. = = = == = = = = = = = = = = = = = = = = =This is what the limestone looks like. :) = = = =Once the limestone reacts with acid, the acid becomes neutralized helping to protect against acid precipitation. = =Limestone is created through a sedimentary process, containing mostly calcium carbonate. Deposits fall to the floor of oceans and lakes. Heat and pressure over a long period of time turns these layers into limestone. = = = = = = = =Another rock is the Granite. Granite is a hard, impervious rock that is less reactive than the limestone. As a result, the lakes in the region have little natural capacity to neutralize acid precipitation. As you can see limestones are more efficient to use as well as calcium oxide. = = = = = = =

= = = = =This is an image of the Granite image.  What is granite? Granite is a light-coloured **[|igneous rock] ** with grains large enough to be visible with the unaided eye. = = = = = = = = = == =**Emissions of sulfur dioxide and nitrogen oxides react with** **water vapor in the atmosphere to create sulfuric and nitric acids.**= = = =Acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air.= = = = = =**__Ways to eliminate acid rain__**= =**Conserve Energy**= = = =An effective way to help lakes that are threatened by acid precipitation is to neutralize the acidity by adding calcium oxide or limestones. =
 * Turn all electronics of when not using them.
 * use more energy efficient items.

media type="youtube" key="Nc6j7zz1_do" width="425" height="350" This video talks about acid rain and shows the effects of acid rain.

=__BIBLIOGRAPHY__= http://www.epa.gov/acidrain/education/site_students/whatcanyoudo.html http://www.epa.gov/acidrain/education/site_students/whatcauses.html http://www.youtube.com/watch?v=Nc6j7zz1_do&feature=related Nelson chemistry textbook gr.11


 * Things I learned about Iodine:**
 * Iodine was discovered by Courtois in 1811
 * Iodine is a bluish-black, glossy solid.
 * Iodine is non metal but it has some metallic properties.
 * Things I learned about neutralizing stomach acids:**
 * The acid in your stomach is also called Hydrochloric acid, these acids are produce by cell in the stomach lining.
 * Stomach acids can be really dangerous if the acids reaches the esophagus. This is when you get acid reflux or commonly known as heartburn.
 * Antacids are type of base that is used to neutralize stomach acids.

Things I learned about Bioremediation:

 * === · Contaminated land can cause the disappearance of animal and plant species that once used to live in the area. ===
 * === · Contaminated soil would cause any crops to be grown in the area to be of poor quality, lacking in nutrients and more than likely cause those eating them to fall ill. ===
 * === · <span style="font-family: 'Calibri','sans-serif'; font-size: 14.6667px;">Catabolism breaks down complex structures into simpler ones and allows micro organisms to gain energy from the chemicals present in the environment surrounding them. Micro organisms require energy to perform regular cell functions, like those involved in anabolism. ===