The primary basis for classifying detrital rocks is , whereas the primary basis for classifying chemical rocks is .
a) crystalline structure; Sorting
b) sorting; density
c) particle size; mineral composition
d) particle shape; trace elements

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.

Which of these are abrahamic faiths check all that apply a.judaism b.roman catholicism c.islam d.buddhism

Fossils of glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? check all that apply.