Why are introductions so important in writing

I believe that future depends on how we look after our trees because from trees we get oxygen to breathe, causes rainfall so that crops can grow, and lastly trees is like a roof on top of us, so that we sleep peacefully, eat peacefully, and live peacefully.

If there is no tree, then none of us will live, since we need oxygen. Plus there would be less rainfall in those places were there is no tree, no greenery which would affect on the agriculture of growing crops. If it is sunny or rainy, trees protect us which acts like a roof on top of us. Therefore, our future depends on how we look after our trees.

Hope I answered your question. Stay safe, happy, and healthy, thank you :) !!