All of the oceans in the world are connected, so they practically represent one huge body of water, which is by far the biggest in the planet, and is also a body of water that consist salt, thus it has salty water.
The oceans have sub-divisions, smaller than them, called seas. They range a lot in size, while some are huge, others are smaller than some big lakes. They represent a remote, peripheral part of the oceans, naturally surrounded by some geographical land forms, still they are part of the oceans.
Ecosystem services are those services that t]are essential for the survival of the planet's ecosystem and these systems are necessary for the maintenance of the earth's biological systems.
These services can be grouped s the food, water regulating and disease controlling systems that support nutrient cycles and oxygen production and plus have spiritual and recreational benefits associated with them.
Natural resources are those resources that are found in natural ecosystems and these systems have various life-supporting services an example of natural resource is coal, oil deposits in rocks which provide their services to man.
The main reasons for the conversion of ecological systems by society are to protect and maintain tian these reserves for the future generations sustainably.
My personal opinion, about the conservation and preservation of the ecosystem, is that the earth has nurtured us and give us resources which we depleted due to our needs now it's up to the man who has to make sure that he doesn't destroy its carry capacity.
If a mineral breaks and leaves a smooth crystal surface, this is said to have cleavage. There are different qualities of cleavage, depending on how smooth the surface of the plane is. For this example, since the mineral breaks cleanly and evenly, it can be described as perfect cleavage.
