The horizon is always always always always ALWAYS 90˚ above the zenith.
Until recently, Sudan and South Sudan were a unified country. Africa is mainly known for its diversity of wildlife, but there is more to be known about this continent than its wildlife. There are certain political issues in some parts of the continent that require the world’s attention. Sudan and South Sudan are such parts of the continent which one should understand.
Disrupt means, to interrupt by causing a disturbance or problem.
Washington D.C is the capital of U.S.A and Ottawa is the capital of Canada