It's the first one is the answer
Over the last century the burning of fossil fuels like coal and oil has increased the concentration of atmospheric carbon dioxide (CO2). This happens because the coal or oil burning process combines carbon with oxygen in the air to make CO2.
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During Digestion the "food" becomes something called Chyme. Its a semi-solid substance and then the leftovers that aren't used turn into feces. <span />
Answer: To help researchers conclude that results are related to the new drug and not to the orange juice.
Explanation:
I could be wrong, Hope this helps
Answer:
It is copied.
Explanation:
Replication is the process by which a double-stranded DNA molecule is copied to produce two identical DNA molecules.
