The slope of the supply curve is: downward and to the right upward and to the right downward and to the left downward and to the right horizontalThe Caucasus Mountains along the northeastern border of Georgia (one of the former Soviet republics) makes it difficult for the nation to trade with other former Soviet republics that are to its north and east. The mountain range acts as a(n): natural embargo infrastructure deterrent marketing barrier natural blockage natural trade barrierThe Caucasus Mountains along the northeastern border of Georgia (one of the former Soviet republics) makes it difficult for the nation to trade with other former Soviet republics that are to its north and east. The mountain range acts as a(n): natural embargo infrastructure deterrent marketing barrier natural blockage natural trade barrier