Buffalo Hill (Hong Kong) can be identified by its uniquely shaped Buffalo's head peak. Eight valleys associated with six streams lie around the slope of the hill. The biggest stream and valley flows along the north-eastern slope of Buffalo Hill and into the Shing Mun River. The entire hill is composed of exposed basalt rock, with some smaller granite deposits also present. The peak of Buffalo Hill is covered by grass and small shrubs, while the valleys are lush with forests. Different types of grass, including Couch grass, Bermuda Grass, Manila Grass and annual bluegrass, grow on the slopes of the hill, while the
Carpet Polymers. DuPont subsequently commercialized a biological process for making 1,3-propanediol from corn syrup, imparting significant renewable content on the corresponding Sorona polyester carpet fibers. These carpet fibers have resiliency comparable to nylon. Acrylic is a synthetic material first created by the Dupont Corporation in 1941 but has gone through various changes since it was first introduced. In the past, acrylic carpet used to fuzz or "pill" easily. This happened when the fibres degraded over time and short strands broke away with contact or friction. Over the years, new types of acrylics have been developed to alleviate some of these problems,