Answer:
Explanation:
From the question, Harry seem to have forgotten that It's the CO2 (carbondioxide) level not the O2 (oxygen)level that gives rise to the urge to breathe. That is to say that once the CO2 level in the blood is high, the brain will trigger a breathing response, that will cause the person(Harry) to try to gasp for air. Also, Harry is jeopardizing his time and life because Hyperventilation itself reduces the CO2 concentration of the blood to below normal level, this makes the bloods pH value to raise, this in turn causes the constriction of the blood vessels that supply the brain, and prevents the transportation of certain electrolytes necessary for the function of the nervous system.
The answer is D. Muscles tense.
The correct answer is A.
She is being honest and direct in this response to a difficult situation. By responding in this way she is letting her friends know exactly how she feels about the situation without being angry or harsh or mean, just direct. With any luck her friends will now understand and stop pressurizing her.
<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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