 
 <prompt> text: ```Di density, or more precisely, di volumetric mass density, of a substance na di mass per unit volume. Di symbol wey dem dey use pass for density na "ρ" (di lower case Greek letter rho), although di Latin letter "D" fit still dey use. Mathematically, density dey defined as mass divided by volume:

where "ρ" na di density, "m" na di mass, and "V" na di volume. For some cases (for example, for di United States oil and gas industry), density dey loosely defined as di weight per unit volume, although dis one no dey scientifically accurate - dis quantity dey more specifically called specific weight.

For a pure substance di density get di same numerical value as its mass concentration. Different materials usually get different densities, and density fit dey relevant to buoyancy, purity and packaging. Osmium and iridium na di densest known elements for standard conditions for temperature and pressure but certain chemical compounds fit dey denser.

To simplify comparisons of density across different systems of units, sometimes e dey replaced by di dimensionless quantity "relative density" or "specific gravity", i.e. di ratio of di density of di material to dat of a standard material, usually water. So if di relative density dey less than one e mean say di substance dey float for water.

1. Dem dey get di same densities for everything?
2. Wetin be di densest elements for regular conditions?
3. Wetin be density of a substance?
4. How e dey defined mathematically?
5. Wetin V stand for?
6. Wetin about P?
7. And m?
8. Na di p wey dem dey use actually di English one?
9. Wetin be di language?
10. Which letter?
11. Wetin be another symbol for density?
12. Who dey give weight per unit volume as di definition?
13. E be good definition?
14. You go use am for science?
15. Wetin fit be better term for dat definition?
16. Where density dey di same value as e mass concentration?
17. To make comparisons easier wetin dey stand in for density?
18. Wetin be example of dat?
19. Wetin be another one?
20. Wetin be di relative density of something wey dey float?``` <response>: ```1. no
2. Osmium and iridium
3. im mass per unit volume
4. mass divided by volume
5. volume
6. density
7. mass,
8. no
9. Greek
10. rho
11. D
12. di United States oil and gas industry
13. no
14. no
15. specific weight
16. For a pure substance
17. A dimensionless quantity
18. relative density
19. specific gravity
20. less than one``` 