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.
Whereas the prime minister has no choice because he or she is a member of Parliament and is directly accountable to that body. Herein lies a very basic difference between the presidential system of government as it exists in the United States and the parliamentary system that has evolved in Great Britain.The framers of the U.S. Constitution adopted the principle first enunciated by the Baron de Montesquieu of separation of powers.hared powers As a counterpoint to separation of powers, the principle that the president, Congress, and the Supreme Court share power over the laws of the country. The U.S. system of government is sometimes called a shared-powers system..