Element Ca belongs to s-block of periodic table and rest i.e., Ge, As and Br are elements of p-blocks. Non-metals are located at the top right hand side of the periodic table while metals are on the left hand side. The metals become more non-metallic as we go left to right side of a period in a periodic table. Hence the order for metallic to non- metallic nature will be Ca>Ge>As>Br.
its A. Genes make up chromosomes. it did it on study island..... i did the other answer the other person got and i got it wrong....and then it told me it was A. Genes make up chromosomes.