What is olivine?
A. silicate rock found mostly on the surface of Earth
B. silicate rock that makes up much of the mantle
C. iron-based non-silicate rock that is green in color
D. lithium dioxide
E. None of these choices are correct.
Answer: E
You might also like to view...
T Tauri stars are believed to be young, high mass main sequence stars
Indicate whether the statement is true or false
Supernovae are ____
a. very common: there are thousands of detectable events occurring in our galaxy each year b. common: a few dozen are detected in our galaxy each year c. uncommon: there are only one or two detected in our galaxy each year d. rare: only one or two occur each century in our galaxy e. extremely rare: only one or two are detected in the Universe each decade
Given that many of the ideas of quantum mechanics seem so strange to our intuition, why do scientists think these ideas are correct?
A) Quantum ideas can be used to make precise predictions that have been tested and confirmed through observations and experiments. B) Although the ideas seem strange at first, they make perfect sense once they are studied in depth, which is why scientists accept them. C) Quantum ideas were expected to be strange, so the fact that they are strange only lends them support. D) Actually, very few scientists think the quantum ideas are correct, and most expect the theories of quantum mechanics to be completely replaced in the near future.
Contrast S and P waves in terms of speed and transmission through the interior
What will be an ideal response?