mind fact sub happy wala birthday quiz frist video ok
Its either B or C. but if I'm not mistaken its c
Because it is important to know the composition of the object
Density is the ratio of the mass of a sample to the volume occupied by that mass, and expresses how much mass there is per unit volume of a given portion of matter. Density is a physical property of extreme importance in the characterization, identification and use of substances or materials.
Answer:
The second is the Industrial Revolution, and that involved the shift from farms to factories. ... Families were separated during the day, and children of the working class often had jobs in factories or coal mines (instead of going to school) because the family needed that income. Laws would later outlaw child labor.
