How long does the earth take to cover 1° longitude?

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The variety of coal in which the deposit contains recognizable traces of the original plant material is____________?

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Primary cosmic rays are composed largely of very fast__________?

A. Protons B. Neutrons C. Electrons D. Gamma rays...

The average weight of man’s brain is 4.8 ounces. What is the average weight of woman’s brain ?

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Sound travels in air at an average speed of nearly________ ?

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spinal card controlls all

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