Read this passage and refer to the data table in this question to answer the questions that follow: The total amount of municipal solid waste generated in the United States has doubled in the last 40
years. Today, the average
person living in the United States produces 4.4 pounds of solid waste per
day. Because the human population and the amount of waste we create are increasing and the
amount of land available is decreasing it is getting harder to dispose of the waste we create.
2.10
Millions of tons of municipal solid waste
Aluminum
1960,95 1870,975 1960, das 1990
Year
Q: During the 1970's the production of waste per person grew slowly while an economic recession
was occuring in the U. S. How might the slower production of waste have been related to the
recession?

Bisphenol a (often called bpa) is a chemical found in products that people use every day, from water bottles to food containers to children's toys. unfortunately, bpa leaches out of its many products and makes its way into our bodies. what are the health effects of bpa exposure? ongoing research is finding that elevated exposure to bpa can affect a wide variety of developmental and physiological processes, but one of the first studies of bpa's health effects came about because of a simple mistake in the lab. at a laboratory at case western reserve university in 1998, geneticist patricia hunt was making a routine check of her female lab mice. as she extracted and examined developing eggs from the ovaries, she began to wonder what had gone wrong. she noticed that many of the eggs showed problems with their chromosomes, and some had irregular amounts of genetic material, which can lead to miscarriages and birth defects in mammals. she learned that a lab assistant had mistakenly washed the plastic mouse cages and water bottles with a harsh soap, releasing bpa from the plastic. knowing that bpa is an endocrine disruptor, a chemical that can enter organisms and mimic hormones, hunt set out to discover whether it had adversely affected her mice.