A rock sample appears to have different layers, seemingly made of sand particles. How would you genetically classify this sample?
A) metamorphic
B) sedimentary
C) igneous
D) chemical
Answer: B
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Using Figure 12.11 in your textbook, which option correctly identifies a time that polarity changed from normal to reverse and back?
A) normal to reverse: 3.04 million years ago, reverse to normal: 2.60 million years ago B) normal to reverse: 2.60 million years ago, reverse to normal: 1.79 million years ago C) normal to reverse: 3.33 million years ago, reverse to normal: 3.04 million years ago D) normal to reverse: 1.79 million years ago, reverse to normal: 0.99 million years ago
The speed of light in space (between the Sun and Earth) is:
A) fastest for ultraviolet light. B) fastest for violet light. C) fastest for red light. D) fastest for blue light. E) same for all colors.
At what temperature will peridotite melt along the geothermal gradient?
What will be an ideal response?
Examine these atomic models and answer the question that follows. The filled black circles represent electrons. (Note: Electrons and nucleus are not drawn to scale.)Assuming that the number of electrons is the same as the number of protons (which is not always the case), which picture represents the atom of carbon that has an atomic number of 6?
