Why are grasslands important?
Because animals live in the grass and eat the grass.... And if some animals were gone, it would start a chain reaction and more animals would become extinct.
A greensward is an area of ground which is primarily covered in grass and small Herbaceous Plants. The term "grassland" is also an apt description of a greensward, with some people differentiating between the two terms by referring to man-made grasslands as greenswards, and natural grasslands as grasslands. Whatever you call them, greenswards are important ecological features, and they have played an important role in human existence for centuries.