Students in a psychology experiment were exposed to three notes of music for a very short period of time and then asked to recall them. if the instructions to recall the notes came immediately, the students usually succeeded. if the instructions came more than three seconds after the notes were played, the students were much less successful. the most plausible explanation for this phenomenon is that, in the latter case, .
a. the echo never made it to the sensory registers
b. the echo faded after being stored in short-term memory
c. the echo was already stored in long-term memory
d. the echo faded before being stored in short-term memory

How did the russian revolution impact world war l ?

"“forty or fifty years ago, many people thought that simply transferring technologies from industrialized to developing countries would close the technology gap. now we know that technologies developed in industrialized countries may not be suitable for use in other environments. they may require a particular type of infrastructure to operate. they may need specialized parts or knowledge to mend when they break we now understand that innovative capacity must be built in different ways." - united nations secretary-general ban ki-moon based on the secretary general's comments, which of these would be most important for a country to improve? a) native literature b) transportation grid c) cultural traditions d) construction styles

Why is it necessary to obey social norms? write briefly.