Which two play a major role during any kind of disaster

One of the brightest comets of the 20th century was comet hyakutake, which passed close to the sun in early 1996. the orbital period of this comet is estimated to be about 30,000 years. find the semi-major axis of this comet’s orbit. compare it to the average sun-pluto distance and to the distance to alpha centauri, the nearest star to the sun, which is 4.3 light-years distant.

How has the geography of india made it difficult for its people to expand before modern technology?

Which us migration trend began soon after world war ii? moving to cities moving to the suburbs moving to the sun belt moving to the northeast