In this Quick Write activity, you will take the perspective of a medieval trader from one of the cities listed below. As that trader, you will reflect on the geographic advantages of your home city. In your response, be
sure to explain the connection between geography and trade in Africa, as well as include reference to the
natural resources of your city.
You are a trader from medieval (choose one):
• Aksum (Axom)
Djenne (Mall
• Timbuktu (Mall)
Benin (Yoruba)
• Zimbabwe (Monomotapa)
.

1. what is the relationship between wavelength and the penetrating power of an electromagnetic wave? a) the penetrating power has no relationship to the wavelength. b) the penetrating power increases as the wavelength increases. c) the penetrating power decreases as the wavelength increases. d) the penetrating power decreases as the wavelength decreases. 2. as ice melts and turns into water, the speed of sound through the material would most likely do what? justify your answer. a) the speed would not change because the material is always water. b) the speed of sound would increase because the density of water is less than that of ice. c) the speed of sound would increase because energy is added to ice in order to make it melt. d) the speed of sound would decrease because sound travels faster through solids than liquids. 3.which of these waves need a medium to travel through? a) sound b) x-rays c) infrared rays d) visible light