Stratigraphic correlation is a process of matching up strata from various sites through the analysis of physical, chemical and other properties. It is also a study that involves establishing geochronological relationships between areas concerned with geological investigation of many succession. It is carried out by studying the different patterns and location of rocks on the earth so as to understand their relationships and age of the layer.
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As the cleanest-burning fossil fuel, natural gas plays an important role in improving the environment by reducing air pollution and greenhouse gas emissions across the U.S. Natural gas produces half as much carbon dioxide and an even smaller fraction of other air emission generated by coal.
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D. sulfur oxides from factories
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This does not naturally occur, only if there is a factory. These other things happen on their own in nature but sulfur from factories relies on other factors down on earth.
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respiratory system
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The function of the respiratory system is to move two gases: oxygen and carbon dioxide.
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the procedure aims to replace the stem cells in the bone marrow the source of new red blood cells with healthy stem cells from a matching donor
