How has the Sahara impacted the population distribution of Africa?

This passage would suggest that sudan might have a a) democracy. b) dictatorship. c) command economy. d) communist government.

An object weighs 40n in air , weighs 20n when submerged jn water and 30n submerged in a liquid of unknown density .what is the density of the liquid?

What does a most-favored-nation (mfn) status mean? a country pays the same tariffs as those paid by all mfn countries. a country has a special exemption from all tariffs in the united states. a country has special licensing agreements with u.s. corporations. a country is exempt from product standards that make it expensive for goods to be imported.