These compounds are made entirely of hydrogen and carbon: ________
Fill in the blank(s) with the appropriate word(s).
Answer: hydrocarbons (or volatile organic compounds)
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Comparing the characteristics of two minerals, a student stated, "These two minerals are identical because they are both transparent and are six sided." Critique this statement
A) This statement is true. B) This statement is probably true, but the chemical composition would need to be known. C) There are different types of six-sided crystals, so there is not enough information to say they are identical. D) This statement is false.
What determines the chemical composition of the dust particles that form around a protostar?
A) heat B) pressure C) contents of the star that exploded to form the protostar D) gravity of nearby objects
The color _______________ is associated with the shortest wavelength of visible light
Fill in the blank(s) with correct word
The inferential knowledge concerning the nature of the interior of the Earth has been accumulated by ________
A) mining B) seismic wave analysis C) gravity studies D) lunar cycles E) astronomy