पिछले दो दशकों में किस महाद्वीप ने लगातार जनसंख्या वृद्धि की उच्चतम प्रतिशत दर दर्ज की है?

In traditional anthropological classification of human races, which racial group was characterized as 'yellow-skinned'?

What is the approximate estimated proportion of ecumene (habitable) and non-ecumene (uninhabitable/sparsely inhabited) areas on the Earth's surface?