Answer:
Nature can be a brutal enemy to humans.
Step-by-step explanation:
The central idea of "The Oasis: Africa" is about the deadly nature of Nature. The behavior of the Nature towards human can be powerful and negatively charged. In the deserts of Africa, sand is found in very thing. In the food, and water, the sand is present which makes them hard for the humans to consume. Despite various hindrances and power of Nature, the narrator keeps going by pointing the finger forward. Nature here plays the significant role of creating hardships for the humans to move on. This picture of Nature has been created in "The Oasis: Africa".