Hypothesis

The absence of the trees in large areas shows us that an action has happened from natural or artificial causes. Also the domination of the grass shows that periodic fires took place in the certain area. In my opinion this hypothesis is correct because first of all shows us that serious events took place, and second these events caused the elimination of many trees. The periodic fires are something natural especially in the summer which actually makes the ground to be more nutritious for the plants and the living organisms. We can observe the same after big fires in the forest and also after volcano explosions. Such hypothesis can be tested from historical observations and through scientific methods.