The appropriate answer is c. global warming. Global warming is an increase in the global temperature caused by the increased use of fossil fuels. Using fossil fuels since the industrial revolution has pumped extra carbon dioxide in the atmosphere than what would actually enter from natural processes. This extra carbon dioxide is increasing the green house effect and causing the temperature to increase.
<span>Both cycles are methods of viral reproduction. Both cycles involve the introduction of the virus into a cell to use the cell's genetic material to replicate more viruses.
Hope this helps.
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