Answer:
1.Importance of sedimentary rocks
Oil, natural gas, coal, and uranium, our major energy resources, are formed in and come from sedimentary rocks. Sand and gravel for construction come from sediment. Sandstone and limestone are used for building stone. Rock gypsum is used to make plaster.
2.It is important in the interpretation of the Earth's history because it indicates the relative age of the rock layers and fossils. The law of original horizontality states that most sediments were originally laid down horizontally. However, many layered rocks are no longer horizontal.
3.In order to create metamorphic rock, it is vital that the existing rock remain solid and not melt. If there is too much heat or pressure, the rock will melt and become magma. This will result in the formation of an igneous rock, not a metamorphic rock. Consider how granite changes form.
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5.Causes of species extinction
Extinction today
Earth is currently experiencing a biodiversity crisis. Recent estimates suggest that extinction threatens up to a million species of plants and animals, in large part because of human activities such as deforestation, hunting, and overfishing.
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