The two major ethnic groups in Rwanda (Hutu and Tutsi) had a history of competition and conflicting territorial claims. A civil war with the Hutu-dominated government was fought from 1990 to 1993 by a Tutsi rebel force (RPF) based in Uganda, and continued despite a cease-fire agreement.
After a similar civil war broke out in neighboring Burundi, the Hutu presidents of both Burundi and Rwanda were assassinated in April, 1994. This triggered a Hutu-led massacre of hundreds of thousands of Rwandans, both Tutsi and moderate Hutus. This was only ended after the takeover of Rwanda by the Tutsi (RPF) military government.
They cause Africa's agricultural prices to go up. -apex
Changes to natural resources
Flooding and drought cycles
Water sources changing locations frequently
They increased the conflicts between the native populations and ethnic groups, leading to wars between tribes and between the colonizers and the natives.
or
They led to civil wars
or
They increased ethnic tension.
Aborigines speak a language unrelated to any outside Australia.
Languages in Tasmania are unrelated to those off the island.
Aboriginal cultures have no influences outside Australia.
Development of the platypus -apex
In general, the feature that separates two ecozones is a deserts. An ocean and desert is an example that separates two ecozones.
A history of geographic and cultural isolation -apex
The black majority was kept in an inferior position - Apex
Somalia became a failed state. -apex
seasonal flooding