Biology, 04.07.2019 01:00, nshuey0930
2. heavy metals that pose health hazards to people and ecosystems occur a. as a by-product of agriculture b. over extended periods of time c. very quickly with tragic results d. all of the above
Answers: 1
Biology, 21.06.2019 19:30, hdjsjfjruejchhehd
Chicken pox and hepatitis are bacterial diseases. true or false?
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Biology, 22.06.2019 02:00, milkshakegrande101
2. given that most biochemical (other than coal) rocks react with hydrochloric acid, what does that tell you about organisms?
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Biology, 22.06.2019 11:30, annsmith66
Ihave no idea how to solve these. plus there's another question that is 2) a 10 kilogram meteorite is collected in space and brought back to earth. it is composed of 1.25 kg of uranium-238 and 8.75 kg of lead-206. how many u-238 half lives have passed? what is the approximate age of the meteorite?
Answers: 1
2. heavy metals that pose health hazards to people and ecosystems occur a. as a by-product of agric...
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