Famine is a more complex problem than a shortage of things to eat; it is a challenge of market and distribution, the result of a long, slow decline in access to food. That decline may occur for any number of reasons, including natural disasters, politics, repressive governments, and poor management of resources. The famine cycle may be triggered by a natural disaster, but is often exacerbated by man-made issues, such as reduced wages and/or rising food prices.
Temperature. Usually, an increase in temperature is accompanied by an increase in the reaction rate. Temperature is a measure of the kinetic energy of a system, so higher temperature implies higher average kinetic energy of molecules and more collisions per unit time.here are several factors that can influence chemical reaction rate. In general, a factor that increases the number of collisions between particles will increase the reaction rate and a factor that decreases the number of collisions between particles will decrease the chemical reaction rate.
Increases in the temperature of a system results from increases in the kinetic energy of the system. This has several effects on the rates of reactions. 1) More energetic collisions. When molecules collide, the kinetic energy of the molecules can be converted into chemical potential energy of the molecules.If the chemical potential energy of the molecules become great enough, the activation energy of a exergonic reaction can be achieved and a change in chemical state will result.s the temperature of a system is increased it is possible that more molecules per unit time will reach the activation energy. Thus the rate of the reaction may increase. 2) The number of collisions per unit time will increase.