An oil spill from a tanker is an example of point-source pollution.
Answer:
Water, Sunlight, and Soil
Osteoporosis, which literally means porous bone, is a disease in which the density and quality of bone are reduced. As bones become more porous and fragile, the risk of fracture is greatly increased. The loss of bone occurs silently and progressively.
Natural selection is the process through which populations of living organisms adapt and change.
