What was the significance of collisions of dust, rock, and ice during earth’s formation? to modify the density of materials present on earth to facilitate heat absorption from the surrounding space to blow away a strong burst of particles from the first atmosphere to harden materials to form different parts of earth’s layers

The main role of dna in the  cell is the long-term storage of information. it is often compared to a blueprint, since it contains the instructions to construct other components of the  cell, such as  proteins  and rna molecules.the main function of rna is to carry information of amino acid sequence from the genes to where  proteins  are assembled on  ribosomes  in the  cytoplasm. mark brainliest, my work is good.