Answer:
1 is true
Explanation:
Liquid iron and nickel would be heavy and sink, they later formed earths core while the crustal rocks became the surface.
Answer: c. Later Copernican Revolution (about 1609-1630)
Explanation:
During the Middle Ages, it was believed that the Earth remained motionless, occupying the center of a universe subject to uniform circular motion where Earth was the only world. All this because the only accepted idea was that of Ptolemy.
Until the Polish astronomer Nicolaus Copernicus proposed that the Earth annually orbits the Sun and rotates once a day on its own axis. He also dared to affirm that the other planets also orbited the Sun as a fixed point. This meant the Earth was no longer unique, nor did it occupy the center of the known universe.
It was on this main idea that the Copernican revolution was based, by changing the Earth for the Sun as the center of the Universe, bringing with it a paradigm shift from the ptolemaic model of the heavens (the stationary Earth in the center of the universe) to the heliocentric model with the Sun in the center of the solar system.
These ideas were published by Copernicus in <em>De revolutionibus orbium coelestium.</em>
Answer:
Many Central Asians were interested in the ethical and spiritual values that Islam could offer. The revival accelerated further following the collapse of the Soviet Union in 1991. For many, Islam constituted a national heritage that had been repressed during the Soviet era.
