Develop a hypothesis about why nations with low literacy rates are more affected by disease than nations with high literacy rates. what are three factors that could cause this difference?

A population with a low literacy rate is less likely to have access to health education, which would be used to develop preventative health practices. A population with a low literacy rate usually performs unskilled labor for low wages and therefore has less income and access to healthcare. A nation with a low literacy rate is also less likely to have a stable government with the economic resources to provide infrastructure, sanitation, and healthcare. Finally, a population with a low literacy rate is more likely to have a rapidly growing population. This contributes to the spread of disease because it is harder for the government to provide adequate healthcare services to exploding populations.

My theory involves the following three factors, a) the higher the literacy rates the more educated and higher income so more likely better fed and therefore less susceptible to disease, b) people who are literate can read about remedies ie they can investigate what can help them with their illnesses and c) a country which promotes literacy more than likely has social programs to help with such things as malnutrition for example which have a bearing on disease and also on improved medical treatments such as occurred in Cuba since the revolution.

Mantle convection is the process that drives plate tectonics. the theory of plate tectonics states that the crust is divided into plates that float on the semi molten mantle below. the circular motion of the magma as it slowly rises and falls or move though convection cells drags the plates along causing them to move. the heat source in the lamp would represent the earth's core. the core is the source of energy that drives convection in the mantle. the lava represents molten magma under the earth's surface. if the lava lamp had floating pieces they would move as the circular motion of the lava in the lamp as it rises and falls would move them along the surface. these floating pieces would represent pieces of the earth's crust.