In mediterranean agriculture, when did the addition of the olive and the vine to wheat crops occur? a. at the end of the monolithic period. b. during the cro magnum era c. at the end of the neolithic period d. before the paleolithic age.

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.

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What does the plate tectonic theroy describe?