Base on my research, the African colonies are characterized by the lack of services, non-representative governments, larger police forces and worst is the forced labor. These are the style of the European rule during the so-called "THE AFRICAN COLONIES OF GERMANY AND THE WAR" from the journal article of Adams C. C. (Jun. 1916).
They needed human labour
Cheap labour
Answer:
scarcity of resources
Explanation:
its a consqence of having to much, unlimited desire in a finite world
The National Security Council
This type would be debris and grit pollutants. Sewage treatment plants separate this type of pollutants from the water and clean the water making it available for further use. It is basically recycling of water, so you should not drop it into the toilet, but if you do it will be cleaned eventually and removed from the water.