Density is mass per unit volume:
d = m/v
In this case the density would be 2kg/10L which works out to 0.2kg/L.
The answer to this question is D: Psychoactive. It is the world's most widely consumed psychoactive drug.
Answer:
2
Explanation:
Though the effect of ships disappearing over the horizon <em>is </em>due to its spherical shape, it could also be used evidence for objects falling off the "edge" of a flat, planar-shaped earth.