Answer to Question 1
According to the currently accepted solar nebula theory for the origin of our solar system, the planets and the Sun formed from a rotating cloud of gas. About 90 of the material was concentrated in the central part of the disk, thus forming an embryonic Sun, around which swirled a rotating cloud of material called a solar nebula. Within this solar nebula were localized eddies in which gases and solid particles condensed. During the condensation process, gaseous, liquid, and solid particles began to accrete into ever-larger masses called planetesimals, which collided and grew in size and mass until they eventually became planets.
Answer to Question 2
True