Oxygen keeps a plant s roots healthy and allows the plant to take up nutrient. Oxygen is the key to growth rate. Without oxygen around the roots, the roots will rot and die. You cannot grow in water, unless you dissolve oxygen in it.
The term federalism is also used to describe a system of government in which sovereignty is constitutionally divided between a central governing authority and constituent political units (such as states or provinces).ederalism is a system based upon democratic rules and institutions in which the power to govern is shared between national and provincial/state governments, creating what is often called a federation.
The separation of powers. The separation of powers is an important component of most modern democratic politic systems. In simple terms, the separation of powers requires that government be divided into three branches: the executive, the legislative and the judicial. Each of these branches must operate separately and no member of one branch should also be a member of the other.