Does nature really hurt itself? does nature want to be ruined? if I would be a nature I will kick those people that have nothing to do but hurt me. Pollution is a result of human activities. it is a problem caused by many.
Cartilaginous fish do not contain any bones - their skeleton is made up of cartilage.
Energy is needed to cause a change in the state of matter because adding energy to matter causes a physical change as matter moves from stage to another.
They are the skeletal muscle tissues
Effects on Waterways
Fertilizers contain large amounts of nitrogen and phosphorus. When these chemicals runoff agricultural fields into waterways, they can lead to accelerated growth of aquatic plants. Nutrients from fertilizer runoff encourages the growth of nuisance algae through the process of eutrophication.
