How did empires in Africa (such as Ghana, Mali, and Songhai) grow as commercial and cultural centers along trade routes?

At 3476 kilometer the moon's diameter is slightly less than the distance across from what

Which of the following is an example of proximodistal pattern of growth? (a) abbey learning to sit first before learning to stand or crawl (b) alex learning to move his eyes before learning his first words (c) colin learning to stare at moving objects before trying to touch them with his hands (d) polly learning to grab the objects with her whole hands before learning to pick them up with her fingers

Arecent challenge to the european union created by a member state is?