Answer: it represents ship trading routes for certain materials and slaves
Explanation: the arrows point across water which indicates that that is a ship route and the arrows have words on them so that also indicates that those things are bieng traded.
They study the physical systems as an example of natural changes that take places like the hurricane, cyclone earthquake, and even floods. These change the earth's surface areas and these are physical changes that are interrelated and interlinked with each other.
Provisioning Services are ecosystem services that describe the material or energy outputs from ecosystems. Provisioning ecosystem services are being lost from modified habitats.