Chemistry, 29.09.2019 04:20 hunter0156

7) explain how tsunamis are formed. how do tsunamis change the surface of the earth?

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Answer from: vane9317

Well, for starters:

Tsunamis are formed by tectonic plates smashing into one another.
They are caused by earthquakes, landslides, volcanic eruptions, and even under sea earth quakes.

Hope this helps!

Answer from: offensiveneedle

tsunamis form from tectonics plates of the earths surface slip, releasing a massive amount of energy into the water. this energy travels up to the surface, displacing water and raising it above normal sea level. but gravity pulls it back down, which makes the energy ripple outwards horizontally, then the tsunami is born moving over 500 mph. these can begin from an earthquake, volcanic activity, or lands slides.

Explanation:

i just know ok?

Answer from: Quest

Answer: abeexplanation:

1. the question asks the most appropriate, which seems to rule out "all of the above." your choice appears to be the correct one.

2. the protocol described is good for identifying correlation, but not cause and effect. for cause/effect, you need to devise a protocol that will assign the treatment (or not) to groups that have essentially the same "demographics" with respect to all the other variables. your choice regarding control group seems appropriate. random assignment of treatment (choice d) may be appropriate also. (i think you can argue that b and d are just different descriptions of the same method.)

3. d will randomize the birds, but may not guarantee there are 10 in each group. e will do both, so seems the better choice.

comment on question 2

based on the problem statement, it seems clear that confident, attentive drivers are more likely to use daytime running lights. so, the protocol might need to be devised in such a way that the lights would be turned on or off without the driver's knowledge. (an attentive driver will figure it out.) assigning a confident, attentive driver to a group required to drive without running lights might mess with his/her confidence and attentiveness. you don't want your experiment to do that. (nor do you want the experiment to subject a driver to greater risk of accident as a consequence of driving without running lights.) experiments involving human safety are always problematic.

Answer from: Quest

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

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