Answer:
Limestone, sedimentary rock composed mainly of calcium carbonate (CaCO3), usually in the form of calcite or aragonite. It may contain considerable amounts of magnesium carbonate (dolomite) as well; minor constituents also commonly present include clay, iron carbonate, feldspar, pyrite, and quartz.
Explanation:
Answer:
i have no idea
Explanation:
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Answer: B: earths magnetic field protects it from all types of space weather
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It is A and D because you do not need knowledge to read nor a day planner find a quit space in your house to read and focus
