A chemical reaction where less energy is needed to break bonds, the reactants then are released when new bonds form in the products.
He decided to sell Louisiana because he no longer needed it. Napoleon wanted to take over some of the Caribbean colonies and then use Louisiana to trade the good he would get from Louisiana. He was unable to do so because of the revolt in Haiti. He wasted many soldiers and still lost the battle so he gave up.
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Between these two regions, however, Canada is sparsely populated. The explanation for this pattern is rooted in Canada's unique geography. Arguably, Canada's most crucial geographic feature is the Canadian Shield – an area formed mainly of volcanic rock covered with a thin layer of soil.