Can somebody pleas help me with these Earth Space Science multiple choice questions? I don't understand this?

1. The P and S waves from the same earthquake arrive at a single seismograph station at different times. The difference between these times can be used to determine which one of the following? (Points : 1)


the intensity of the earthquake


the focus of the earthquake


the distance to the earthquake


the length of the earthquake








2. When rocks are under stress, they first deform, and then break to relieve the stress. This is known as the _______________ theory. (Points : 1)


relativity


seafloor spreading


elastic rebound


inelastic rebound








3. During an earthquake you should _____, duck, cover, and hold. (Points : 1)


run


roll


drop


look








4. S waves cannot travel through the outer core because it is ________________. (Points : 1)


made of metal


liquid


very hot


very deep








5. Scientists measure two earthquakes during the same week—one in Missouri with a magnitude of 2.4, and one in California with a magnitude of 4.8. Based only on this information, what can you conclude about the two earthquakes? (Points : 1)


The focus of the Missouri quake was closer to the surface.


The Missouri quake released less energy.


Less damage was caused by the Missouri quake.


The Missouri quake lasted a shorter amount of time.








6. Which of the following describes the geological cause of an earthquake? (Points : 1)


Magma shifts suddenly underground, melting new rock.


Rocks of greater density suddenly shift beneath rocks of lesser density.


Large waves impact coastal regions and transfer their energy to land.


Rocks deformed by stalled tectonic motion suddenly fracture.








7. An earthquake with the epicenter on the ocean floor may cause a giant wave called a _____________. (Points : 1)


hurricane


tornado


whirlpool


tsunami








8. A company is looking to construct an office building in a region that experiences a high amount of earthquakes. All of the following are wise safety precautions except for which one? (Points : 1)


lay the foundation in firm ground rather than loose soil


build in an area identified as a “seismic gap”


build using fireproof materials, flexible materials, and foundational rollers


restrict the height of the building








9. A(n) _____ is a particular zone where rocks have been stressed and deformed but no earthquake has happened for many years. (Points : 1)


epicenter


hot spot


seismic gap


fault line








10. The magnitude of an earthquake is described using the _______________. (Points : 1)


epicenter


Richter scale


parallax system


S and P Wave index








11. Researchers discover a chain of volcanic islands in the Pacific Ocean that are frequently disturbed by earthquakes. What is the best explanation for this? (Points : 1)


Tsunamis are common in the Pacific Ocean.


Volcanic eruptions may cause earthquakes.


The islands are above tectonic plate boundaries.


The islands receive aftershocks from continental faults.








12. Additional tremors that occur shortly after the main earthquake are known as _______________. (Points : 1)


tsunamis


aftershocks


seismic gaps


P and S Waves








13. Which of the following does not affect the intensity of an earthquake? (Points : 1)


building construction


soil texture


magnitude


air temperature








14. A large earthquake in which of the following regions would most likely produce a tsunami? (Points : 1)


Himalaya Mountains


Yellowstone National Park


Ring of Fire


Mississippi River Basin








15. What is the only 100% certain way of predicting an earthquake? (Points : 1)


studying unusual weather patterns


measuring drastic temperature changes in rock


observing strange animal behavior


There is no 100% reliable way of predicting an earthquake.








16. A single earthquake can have more than one _______________. (Points : 1)


magnitude


epicenter


focus


intensity|||Please e-mail me. I can answer all of those questions, but I'm not going to do it here, because I know this is homework, and I do not want your to simply copy and paste my answers into your homework, because you probably will not give me credit as your source. Your teacher will know that you did not answer those questions on your own. I'm a planetary geologist/gephysicst. That's why I can answer these questions, and very few other people in Astronomy %26amp; Space can answer these questions. They don't have an almost master's degree in geophysics or a real master's degree in geology. I do. It's going to take a LOT of e-mails to go through all those questions. You can start your own research by doing a Google search on "seismic waves".|||1-C


2-C


3-C


4- %26lt;----- When S wave hits a solid, it creates p waves inside the solid and visa versa


5-B


6-D


7-D


8-D


9-B


10-B


11-B


12-B


13-A


14-C


15-D


16-B





Is this an elementary school test?|||I think your question was not placed in the correct category. This is astronomy and space. Don't let the Yahoo! Answers system automatically select your category. Most times it will go where you did not intend it. As you can see, your question has absolutely nothing to do with Astronomy and Space. This should have been posted in GEOLOGY.