Given off by very hot objects such as the sun

specific gravity is the density of a substance divided by the density of water. since (at standard temperature and pressure) water has a density of 1 gram/cm3, and since all of the units cancel, specific gravity is usually very close to the same value as density

so "c" is the answer

plz give brainliest

fe 55.85 g/mol and h2o 18.02 g/mol.