<span>The correct answer to this question is B - the two key questions in geography are intended to obtain certain factual information. Whilst the other possible questions given as answers for this question, such as 'why are they going' give indefinite, opinion-based answers, only answer B. Which birds are migrating would give a definite answer.</span>
Nigeria is a country in West Africa.
I believe it is your first option
A.movement
The primary case of Nigeria's water pollution would be oil spills.
The spirits of the ancestors, animal spirits too
