The major carbon sources (reservoirs that release more carbon than absorbed) are: deforestation and fossil fuels
The major carbon sinks (reservoirs that absorb more carbon than released) are:
soil, oceans and plants.
When scientists calculate the amount of carbon dioxide is returned to the atmosphere vs the released the amount of carbon, a large amount is unaccounted for and the total does not add up. This is why scientists believe there is an undiscovered carbon sink somewhere.
<em>M CH₂O₂:</em>
mC + mH×2 + mO₂×2 = 12g + 1g×2 + 16g<span>×2 = <u>46g/mol</u>
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204Tl, syn, 3.78 y, β · Pb · ε · Hg. 205Tl, 70.5%, stable. Category: Thallium · view · talk · edit. | references. Thallium is a chemical element with the symbol Tl and atomic number 81. It is a gray ... The radioisotope thallium ...
Elements are pure substances. Carbon is the only one that is pure.
<h2>Option A</h2>
Explanation:
<h3>They taste sour and react with metal.</h3>