Mercury Emissions by Continent. By weight, coal does not contain much mercury, but we burn a lot of it. Several industries besides coal-fired power plants contribute substantially to atmospheric mercury pollution. Figure 2.13 shows mercury emissions by industry from different regions of the world in 2006. Which industry tops the list of mercury emitters? Which industry is next on the list?
1.Dental amalgam (cremation); Waste incineration
2.Chlorine production; Cement production
3.Cement production; Metal production
4.Fossil fuel combustion; Gold production
4
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When assessing the role of conjugative bacteria in the spread of antibiotic resistance genes, it is fair to say that Hfr cells contribute most while F- cells contribute least.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. In cellular respiration, the energy found in the covalent bonds in glucose is used to form ATP. 2. Consider when an African rock python eats a Thomson's gazelle and begins breaking the gazelle down into component molecules with digestive acids. The digestion described is an example of cellular respiration. 3. People beginning cardiopulmonary resuscitation (CPR) training are often surprised that they can breathe enough oxygen into a victim with the air from their lungs. The fact that you still have sufficient oxygen to benefit another person in emergencies indicates that our bodies do not use all of the oxygen molecules we breathe in. 4. Cellular aerobic respiration includes glycolysis, the Krebs cycle, and electron transport. 5. Proteins in your diet can be used as a reactant in cellular respiration pathways.
Which of the following compounds helps to
maintain our blood pH between 7.35 and 7.45?
a. water b. carbonic acid c. hydrocloric acid d. hydrogen peroxide e. sodium hydroxide
Spores can undergo _____ to become a vegetative cell. Vegetative cells go through _____ to become a spore.
Fill in the blank(s) with the appropriate word(s).