Prof. Walker's Fun School Fourth issue
5/8

Eventually, the land turns into desert where no grass can grow.How awful!To avoid such things, we need to knowthe minimum amount of grass tosustain the grassland.When you understand this, you don’t let cale graze too long on the same land....... or put too many cale on a small pasture.It’s important to know there is a limit to the resilience of nature.In addition, the higher the resilience of nature, the beer chance there is to avoid going beyond the limit. And it needs dierent kinds of plants and animals to enhance resilience.

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