Answer:
The effects of tobacco smoke on the respiratory system include: irritation of the trachea (windpipe) and larynx (voice box) reduced lung function and breathlessness due to swelling and narrowing of the lung airways and excess mucus in the lung passages.
Explanation: hope i could help and i hope you have a really good day :)
Hi !
<em>Name the 3 pollutants that have decreased the most since the 1990</em>
Answer:
<em>- lead, </em>
<em>- sulfur dioxide (SO2) </em>
<em>- oxides of nitrogen (NOx).</em>
The immune system doent take it as a threat but other systems would take it as a threath
Risks can accumulate over time through exposure to different things over life which is a normal part of life generally. People who do a lot of crazy things are people who are more prone to having different kinds of risks being brought upon them. If you're working as a construction, it's more likely with time that you will suffer from some sort of work-related accident than someone who works in an office all day long.
<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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