California has been plagued with earthquakes over the centuries; earthquakes that are a severe danger to life and land. earthquakes are prevalent because in california
a) lies directly over the ring of fire.
b) lies on a continental plate that is falling under the oceanic plate it meets.
c) the pacific plate is moving northwest, scraping horizontally past north american plate.
d) the pacific plate and the north american plate are meeting at a convergent plate boundary.

answer; i believe that the correct answer is (c) explore the outer planets; / plz check good luck

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.

it can be observed without changing the identity of the object.

it depends on what substance you're talking about as well as many other factors. in quantum mechanics, the observation of particles affects the observers ability to measure certain properties. for example: you can know the velocity of a particle, but you can't know it's position; or you can know it's position, but not it's velocity. it's like trying to find out where a grain of sand is by throwing other grains of sand at it. once you find out where it is, it's been moved. it's also like trying to find an answer to the question of whether or not a tree falling in a forest makes a sound if nobody is there to hear it. paradoxically, the only way to find out is to be there and hear it.