<span>Reverse osmosis and filter water pitchers appear to be quite popular these days as methods to get cleaner water. People clearly want better quality water, but may not understand that different methods generate different results. All water filtration methods are not equal. There are many ways to improve water quality. One popular method is to use a pitcher with a filter. These filters are carbon based and can remove some chemicals, particularly organic chemicals. This improves the smell and taste of the water for many consumers, but there still may be a variety of contaminants left behind in their drinking water.</span>
The rock did not become an igneous rock because igneous rock can not be formed from sedimentary rock. A metamorphic rock can be formed from a sedimentary or igneous rock but an igneous rock can not be formed from a sedimentary or metamorphic rock. Igneous rocks are formed by the cooling and hardening of molten magma only.<span />