What causes egg shells to be brown?

A) Dirt B) Iodine
C) The pigment ooporphyrin D) None of the above


C) The pigment ooporphyrin

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Answer the following statement(s) true (T) or false (F)

1. Direct current is used for various electrochemical processes, including electroplating, refining of copper and aluminum, electrotyping, production of industrial gases by electrolysis, and charging of storage batteries. 2. A basic knowledge of trigonometry is essential to an understanding of alternating-current concepts. 3. If the generator has two pairs of poles, then a cycle is generated every half-revolution, or 2 hertz per second. 4. Alternating-voltage waveforms are all sine waves. 5. In electronics, the frequencies used cover a very narrow range.

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The amperage draw of an electric fuel pump is higher that specified. All of the following are possible causes EXCEPT ________

A) Corroded electrical connections at the pump motor B) Clogged fuel filter C) Defective fuel pump D) Restriction in the fuel line

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Most pickup trucks use which type of frame?

A) Unit body B) Stub frame C) Full frame D) None of these is correct.

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What is meant by cooling range?

What will be an ideal response?

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