The raw material that is added to a system for processing is known as input. The product produced is the output.
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Answer:
The correct answer is methane . Nature constitutes most of the substances made up of organic compounds. These compounds have carbon atoms attached with hydrogen atoms with a chemical bond (very few compounds may not have this bond).
<span>Geologists generally agree that Earth is 4.55 billion years old...</span>
The answer is:
C) Skeletal muscles are an example of voluntary muscle
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Atom, molecule, tissue, organism, organelle, organ, organ system, population
