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Faster Dissolved Oxygen Test Kit
Part 1 of Paper
....ved oxygen (DO) levels as measured by the traditional HACH®
method or the newly developed CHEMets® test kit under typical field conditions.
Hypothesis
My hypothesis is that there is no significant difference in dissolved
oxygen (DO) levels as measured by the traditional HACH® method or the newly
developed CHEMets.... Part 2 of Paper
....(Knopman, 1993)
The early biosphere was not pleasant for life because the atmosphere had
low levels of oxygen. Photosynthetic bacteria consumed carbon dioxide and
produced simple sugars and oxygen which created the oxygen abundant atmosphere
in which more advanced life forms could develop. (Brown, 1994) The mystery of
how Earth's oxygen levels rose is very complex. Scientists don't agree when or
how the oxygen on earth got here, but we know we could not live without it.
(Pendick, 1993) Ox.... |
| Number of words: 3502 - Approximate pages: 13 |
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