Answer:
D
Explanation:
Most of the energy in the United States comes from the burning of fossil fuels (coal, oil, natural gas). Hope this helps!
Answer:
IV: Student grade level (6th, 7th, 8th)
DV: "Loudness" (Operationalizing this variable would be beneficial, or in other words, define a way to measure it)
Explanation:
Answer:
D. alcohol
Explanation:
Fermentation by microorganisms converts organic materials into alcohol
Answer:
Antibiotic resistance occurs when bacteria change in response to the use of these medicines. Bacteria, not humans or animals, become antibiotic-resistant. These bacteria may infect humans and animals, and the infections they cause are harder to treat than those caused by non-resistant bacteria.
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Explanation:
