<em>Answer:</em>
<em>Limestone is a type of carbonate sedimentary rock. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of calcium carbonate. A closely related rock is dolomite, which contains a high percentage of the mineral dolomite, CaMg(CO₃)₂.</em>
<em>Limestone has numerous uses: as a building material, an essential component of concrete (Portland cement), as aggregate for the base of roads, as white pigment or filler in products such as toothpaste or paints, as a chemical feed stock for the production of lime, as a soil conditioner, and as a popular decorative .</em>
<em>Limestone is formed in two ways. It can be formed with the help of living organisms and by evaporation. Ocean-dwelling organisms such as oysters, clams, mussels and coral use calcium carbonate (CaCO3) found in seawater to create their shells and bones.</em>
<em>LIMESTONE MEANING:</em>
<em>a rock that is formed chiefly by accumulation of organic remains (such as shells or coral), consists mainly of calcium carbonate, is extensively used in building, and yields lime when burned.</em>
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Maintaining personal hygiene is important to avoid the risk of contracting illnesses and infections.
Answer: More likely older people, 50-80 years old
Explanation:
There are voluntary and involuntary muscle movements, put your hand on a hot stove for example and your reflexes generally do it for you. That is involuntary and movement produced by the nerves and nerve ending because of the pain that your nerve felt. The doing after telling the brain is something called motor function and the movement isn’t produced on reflexes and nerves alone, it’s a combination of your muscular system and brains motor function working together.
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The type of chemical reaction is used by liver cells when synthesizing glycogen from glucose is decomposition reaction.
