B. Because skeletons and skulls are represent
Answer:
History is hard to teach. It is not a bounded field of knowledge that can be conveyed in stages and steps. It does not operate by rules or predictable patterns. It cannot be segmented into separate elements without dying.
Explanation:
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Could you provide answer choices or the source being used to answer this?
Describe what the BOR is and also try to summarize it. Also u cud read it and write it in modern English <span />
The correct answer is C) increases.
<em>A catalytic combuster always increases the efficiency of a fireplace.
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A catalytic combustor uses a ceramic honeycomb design of oval shape. It is coated with some noble metal to resist the heat. The smoke can be burned with this application. A catalytic combustor can increase the efficiency by 10% and the air pollution is reduced up to 75%, That is why a catalytic combuster always increases the efficiency of a fireplace.
The other options of the question were a) decreases and b) has no effect.