Answer:
Deforestation, Extinction, pollution and more.
Explanation:
If something happens over a long period of time, like deforestation for example. Deforestation is when people cut down trees in a forest and leave a huge area of dirt to make way for roads, farms, or anything else. In order to get the forest back, it would take years and years for it to become a forest again.
Particles and waves i think.
We basicly can't digest them as it has cellulose and we can't digest cellulose .acc. to me in olden days early men used to survive with raw green plants because the cellulose is digested by our appendix but slowly as we stopped eating raw green plants the appendix lost it function tooo. so we should always eat a selective plant like lettuce
