Why did the heliocentric model of the universe replace the geocentric model of the universe? O The heliocentric model provided a simpler explanation of the motions of the planets.

O The heliocentric model proved that the Earth rotated.

O The geocentric model did not predict the phases of the Moon.

O The geocentric model no longer predicted the positions of the constellations.

15 points need quick 1. looking at your graph and the geologic time scale during what period did this rock form? what is the age span of the rock, in millions of years? 2. this rock sample is limestone and shale. with what you know about rock formation, what type of environment did these organisms live in? 3. if some of these fossil samples were found in a rock also containing leaf fossils, could you use radiocarbon dating to determine the age of this rock? explain.