they are important
locks are important so that bouts can go up and down hills and dams are importan to stop flooding
Bighorn sheep live in North America, not in the Sahara.
Not at all, the Bighorn Sheep is native to North America. The Sahara is in Africa.
dams
The Sahara provided a barrier to invading armies. It offered the Egyptians protection.
It is old and important to the people who live there
Nile river and the Sahara desert
they eat grass and use wood from trees to make their dams and their dams are very important to them
The Sahara Desert is the largest desert that is subtropical. It covers the majority of northern Africa and is home to rare plants and animals.
they were form of transportation
Wildlife nursery and habitat