Answer: Because sand dunes protect inland areas from swells, tides, and winds, they must be protected and defended like national treasures. A strong and healthy beach dune is a powerful antidote against coastal erosion. The ocean and the wind can have an unpredictable, destructive force on coastal regions.
Answer:
the northern sudan is mostly arab and muslim and southern Sudan is Christian
Explanation:
The two parts of the country are very different, though The north is mostly Arab and Muslim, while the south is made up of ethnic sub-Saharan Africans who are Christian or Animist
Mostly found in earths crust as silicate ores which are a type of clay
answer is a gold, they mining gold