On the economic continuum, which country would be located furthest toward the command side?
china
india
north korea
japan

North Korea

Explanation:

A command economy is one in which supply is regulated by the government. As such, competition is not a feature of command economies. China once had a command economy, but switched to a mixed economy that includes many free market principles.

Japan is not at all a command economy, nor is India, as both countries are solid democracies with free market economies. North Korea is perhaps, along with Cuba, a classic example of a command economy controlled by the central state.

mercury

explanation:

mercury is the least dense because of its size