Here are possible changes that could take place if the concentration of oxygen in theatmosphere were halved:1.Iron and steel would rust more slowly, prolonging the useful life of many objects madefrom these materials.2.Fires would burn less vigorously and produce more CO and soot. Logs in your fireplacemight last longer.3.Your body can adapt (just as it does at higher elevations) to lower levels of oxygen. But inthis case, the level may be too low for metabolic processes involving oxygen to occur at fastenough rates for life as we currently know it.33.Explain why CO is called the “silent killer.” Select two other pollutants for which this namewould not apply and explain why not.Answer:CO is termed the “silent killer” because your senses cannot detect this colorless, tasteless,and odorless gas. The same term cannot be applied to pollutants such as O3or SO2becauseeach has a distinctive odor that can be detected at concentrations below the level of toxicity.34.Cigarette smoke is 2–3% carbon monoxide.a.How many parts per million is this?b.How does this value compare with the National Ambient Air Quality Standards for CO inboth a 1-hour and an 8-hour period?c.Propose a reason why smokers do not succumb to carbon monoxide poisoning.Answer:a. To convert from percent to ppm, move the decimal point 4 places to the right.Alternatively:3%=3pph3pph×1,000,000ppm100pph=30,000ppmb.The NAAQS for CO in an 8-hour period is 9 ppm. The concentration of CO in cigarettesmoke is over three thousand times the 8-hour standard. The NAAS for CO
The answer is predicate a sentence-A
Answer:
Dear friend,
I wanted to write to you so that I can hopefully get my message across. I know this country is insane and there have been many bad decsions have been made but I want to share with you some reasons to stay. The saying 'the grass is always greener' is not logically true, in every situation and in every country, nothing is perfect, and everywhere has different issues. Some countries are only ruled by a King and the people have no rights. Here we have these rights, and going abroad is going to limit these rights. Additionally, think about how fragile our world seems, it would be horrible if you were out of the country when our borders are shut due to a threat. There are also many different cultures, I am concerned that the culture shock might be painful. Many people speak about how unprepared they were for a trip they were prepared for. I want you to be prepared and safe. Please consider these things my friend. I do this with the hope that you will be safe and sane in these crazy times.
Sincerely ,
Name
Explanation:
Answer:
The correct answers are:
Boxer is motivated by his commitment to Napoleon's ideas.
Boxer is motivated by his own strong work ethic.
Explanation:
