Infrastructure test - 8

Typhoid fever is a disease which is caused by the bacterium Salmonella typhi and paratyphi species. The bacterium is released in the feces of the infected person. The water or food contaminated with these feces can result in the transmission of the disease. 

Fluoride is the important mineral found in teeth, bone and joint. It plays an important role in the formation of the enamel of teeth and mineralization of bones at the optimum level. But excess fluoride in drinking water and foods causes a disorder known as fluorosis. It is characterized by mottling of teeth, weak bones, stiff and painful joints (skeletal fluorosis).

The waterborne disease is caused by drinking contaminated water to prevent such conditions can be prevented by using proper disposal for sewage, maintain good sanitary habits and drinking boiled water so that the unnecessary enzymes may die. covering mouth and nose is a preventive measure for cold flu.

The primary organ affected during tuberculosis is lung. Tuberculosis (TB) is an infectious disease caused by the bacillus Mycobacterium tuberculosis.

The primary environmental concern related to nuclear power is the creation of radioactive wastes such as uranium mill tailings, spent (used) reactor fuel, and other radioactive wastes. These materials can remain radioactive and dangerous to human health for thousands of years. Radioactive wastes are subject to special regulations that govern their handling, transportation, storage, and disposal to protect human health and the environment.

Technically speaking, the sun is, in fact, not a source of inexhaustible energy, since every star eventually burns out. However, the sun's internal fuel supply will keep it burning for at least six billion years, enough to be considered inexhaustible for all practical purposes. The sun's nuclear furnace provides as much as 174 petawatts of solar energy to the planet, approximately 70 percent of which is absorbed by the surface.

Ocean Thermal Energy Conversion (OTEC) is a process that can produce electricity by using the temperature difference between deep cold ocean water and warm tropical surface waters. OTEC plants pump large quantities of deep cold seawater and surface seawater to run a power cycle and produce electricity.