Here are the answers to your questions:
7) The Allied Powers were able to defeat the German forces in the First World War in Cameroon because of the following reasons EXCEPT
- D) they were fighting a defensive warfare.
Explanation: While the German forces were indeed fighting defensively due to being outnumbered and surrounded, this describes their strategic posture rather than a direct reason for their defeat. The lack of ammunition, disorganization, and encirclement were more direct causes of their eventual surrender.
8) The event that led to the change of the status of Cameroon from a 'colony' to a 'Mandated Territory' was
- B) the signing of the Treaty of Versailles.
Explanation: The Treaty of Versailles, signed in 1919, formally ended