Chromosomes are found in the nucleas of a human cell and are carrier of generic information and responsible for the transmission of these information from one generation to another
My mom always say when in dought pick C so C
Stars begin to form from clouds of gas in space. The cold temperatures and high densities (compared to elsewhere in space, but would be considered a vacuum on Earth) of these clouds allow gravity to overcome thermal pressure and start the gravitational collapse that will form a star.