The correct answer is - b. the red sea.
The Red Sea is a sea located between the western coast of the Arabian Peninsula and the northeastern part of Africa, and it represents a natural border between them. It is a sea that has a linear appearance, with northwest-southeast direction. It is connected to the Mediterranean Sea through the Suez Canal, which is very important canal for the trade between Europe and North Africa with the Asian countries.
The DRC is bordered by 9 countries: Angola, Burundi, the Central African Republic, the Republic of Congo, Rwanda, South Sudan, Tanzania, Uganda, and Zambia
Answer:
That is much less often than in the last 150 million years, when the field has flipped every 600,000 years. In the last 10-20 million years it has sped up even more, to once every 200,000-250,000 years. "The evidence points to a more stable field in the very far past and fewer reversals," says Veikkolainen.
Unitary: no local decisions.
Federal: some local decision.
Confederation: a lot of local decisions.