All of the top 10 causes of death in developing countries are preventable or treatable (early twentieth century). Globally, water-borne diseases are the leading cause of death in children below five years, only to be outranked by the childhood mortality rates from acute respiratory infections rank first. Around the world, water supply and satisfaction facilities are rapidly deteriorating and currently are operating at a fraction of their installed capacity.

A. 1st
B. 2nd
C. 4th
5. 3rd

Liquid ammonia is produced at high temperatures and under great pressure in a tank by passing a mixture of nitrogen gas and hydrogen gas over an iron catalyst. the reaction is represented by the following equation. n2(g) + 3h2(g) → 2nh3(g) changing all but one experimental condition will affect the amount of ammonia produced. that condition is a) increasing the concentration of both reactants b) changing the temperature within the tank c) decreasing the pressure within the tank. d) increasing only the amount of nitrogen present.