Question

1: The density of water is 1000 kg /m3....a : what do you mean by this ?​

Answer 1

Answer:

1000kg mass in 1m^3 of volume

Explanation:

Well, definition of density is mass per unit volume. Breaking this down, amount of matter present in 1m^3, or total of mass present in 1m^3 3D space.

Now the magnitude which you gave simply states that in a particular substance, the density is high, or there is a mass of 1000kg in 1m^3 space.