World hunger is a terrible symptom of world poverty. If efforts are only directed at providing food, or improving food production or distribution, then the structural root causes that create hunger, poverty and dependency would still remain. 1 billion children live in poverty (1 in 2 children in the world). 2  640 million live without adequate shelter, 400 million have no access to safe water, 270 million have no access to health services. 10.6 million died in 2003 before they reached the age of 5 (or roughly 29,000 children per day).
A catalyst is a substance which speeds up a reaction, but is chemically unchanged at the end of the reaction. When the reaction has finished, you would have exactly the same mass of catalyst as you had at the beginning.
X, x=1,2,3) and carbon monoxide (CO) from the combustion residues before they are released into the environment. It is called a catalytic converter because it converts CO into ubiquitous CO 2 and NO X into N 2 and O 2 through chemical reactions on a solid catalyst.A catalyst is a chemical compound that helps the reaction to occur faster by reducing the activation energy barrier of the reaction.n the case of the catcon, the catalyst is a solid platinum (Pt) or palladium (Pd)surface unto which reactants from the gaseous phase adsorb and react. This process of a reaction being assisted by a catalyst that is in a phase different from the reactants phase is known as heterogeneous catalysis.