Which group invaded the empire of songhail? how were they able to defeat songhai?

After the passing of Emperor Askia Daoud, a civil war weakened the empire, which led the Saadi Dynasty of Marocco to begin an invasion, under the eunuch Judar Pasha. In 1591, at the Battle of Tondibi, the vastly numbered Songhai army, was stomped to death by cattle that was triggered by Saadi's gunpowder weapons.

monitor contract compliance and results of forestry activities to assure adherence to government regulations.  

plan and supervise forestry projects, such as determining the type, number and placement of trees to be planted, managing tree nurseries, thinning forest and monitoring growth of new seedlings.  

establish short- and long-term plans for management of forest lands and forest resources.  

determine methods of cutting and removing timber with minimum waste and environmental damage.  

supervise activities of other forestry workers.

by the way there is no video here.