This is basic biology. If a species of bird eats a particular species of plant seeds, then the bird proceeds to disperse or drop the seeds in new places through its fecal matter, the plant will continue to grow in new places and thrive.
If the species of bird is eaten or killed off by say a disease, there are no birds to spread the plant seed, therefore resulting in the death of the plant species
It’s important for economies to invest in education and training of their people in order to develop new technologies because, when more people are becoming educated there are also going to be more advancements in that society.
Plateau because of the fresh water I think
human resources are valuable things or items owned by human being whole sustainable human resources are valuable things needed by human being
