Answer:
Demand for recycled paper has increased as consumers have become more aware of the environmental issues surrounding waste disposal. Paper is a natural raw material made from renewable wood and plants. Recycled paper is made from waste paper and paperboard. Both new paper and recycled paper contain traces of heavy metals. However, some types of recycled paper contain more heavy metals than new paper due, in part, to the inks used for printing or adding color to the original paper. Metals can migrate from the paper packaging and containers used for food to the food itself. This metal migration is controlled and monitored to reduce the exposure of humans to heavy metals. Food agencies in each country determine the limit of cadmium, zinc, nickel, and copper in packaging materials. Most countries impose a limit of heavy metals in recycled paper not to exceed 100.0 ppm or 100.0 . The limit for lead in eggfruit, or vegetable-packaging is lower-not to exceed-20.0 mg/kg. The table in Figure a lists the results of the analysis of samples of recycled paper produced by a manufacturer during a three-month period. The goal of the manufacturer is to reduce the amount of heavy metals-especially lead-in the recycled paper it produces and sells. From March to May, the manufacturer varied the
methods of production each month to determine which method would produce paper with the lowest metal content. Each month, lab technicians cut small samples of recycled paper with an area of 1.000 and a thickness of 0.0500 The technicians then prepared the samples for analysis. The average density of the samples is Use the information provided in the figure to answer the
following questions:
a. Did the company reduce the amount of lead in its product between March and May?
b. Which metal was not reduced?
c. Each month's sample represents a different manufacturing process. Which process would you recommend the manufacturer choose to continue to use over the next year while additional processes are tested? Why?
d. What is the total amount of the five metals for the April sample (in mg/kg)?
e. What is the total mass (in mg) of the five metals for the April sample found in the 1.000 sample?
f. Lead has four stable isotopes: 204
Explanation:
so this problem gives us a lot of information and asked us to answer several questions. So, Letter A says, did the company make reduce the amount of lead in its product between March and May? And the answer is yes. The PB levels went from 3.5 to 2.8 22.4, so it was reduced. Be asks which medal was not reduced. And that would be sync because England from 2.723 point 2.723 2 to 3.7 so zinc increased. It was not reduced. See says each month sample represents a different manufacturing process.
1. The first idea constructed by the author of the essay on lines 1-13 is that America is a nation resulting from pieces of various nations. This means that America is a culturally and socially diverse country, where each person has their own experiences and concepts and where each person has a different origin from each other. The second idea that the author raises is that this diversity should mean that all citizens are equal, but that is not what happens, since the history of America is told by events, where the freedoms and rights of groups of people were denied because they were not considered free and of equal value.
2. The author shows that these events that show injustice and denial of rights (such as lynching of blacks, denial of rights to women, murder of gays) are failures in the freedom and equality that America preaches, which indicates that the nation had great failures and it is these failures that question the country's real capacity to be fair and successful.
3. In line 22, the puzzle that the author refers to is related to the fact that as an increasingly individualistic country where many citizens proliferate, the feeling of superiority manages to remain united and in community in adverse moments?
4. The author believes that the country is divided, fragmented, because most of the time, citizens are on the verge of starting a fight with their peers because they do not see them as equals, but as something different and a citizen who does not belong there. . To exemplify this, the author states that in America an Arab can be a taxi driver for a Jew, or, a Jew can be a taxi driver for an Arab, even if both are part of American society, they do not see themselves as equals they can raise hate speech against each other.
A. Why you are reading. You need to know why you're reading, so you can understand it better.
I think its the 3rd one. im pretty sure. I hope this helped!
Answer:
My
Explanation:
It is describing the hand.
