29 The diagram below represents a biological process. Annual Perennial plants plants and grasses Shrubs Softwood trees Hardwood trees Time Source: Adapted from http://www.physicalgeography.net/fundamentals/9i.html Which statement is true about the biological process shown? (1) This is a short-term process resulting from sudden changes. (2) This process cannot be altered by humans and other organisms. (3) If the hardwood trees are destroyed, the altered ecosystem cannot recover. (4) The shrubs modify the environment, making it more suitable for the softwood trees.​