If you take too much of a fat-soluble vitamin, it could become toxic. Your body is especially sensitive to too much vitamin A from animal sources (retinol) and too much vitamin D. A balanced diet usually provides enough fat-soluble vitamins.he tables below list the vitamins, what they do in the body (their functions), and their sources in food.
Fossil Fuels and Energy Use. Fossil fuels are natural resources such as coal, oil (including gasoline and diesel fuel) and natural gas. They are formed from the remains of ancient plant and animal life. Fossil fuel burning powers our vehicles and industries, heats and cools our buildings, and runs appliances.It also produces electricity that we use for all sorts of purposes, such as lights and computers.hey are formed from the remains of ancient plant and animal life. Fossil fuel burning powers our vehicles and industries, heats and cools our buildings, and runs appliances. It also produces electricity that we use for all sorts of purposes, such as lights and computers.
The electricity generation process is described in detail in the section about steam turbines. This page considers issues concerning the fuel. Fossil fuelled plants use either coal (60%), oil (10%)or gas (30%) in purpose designed combustion chambers to raise steam. These are all non-renewable resources whose supply will ultimately be exhausted. The energy content of these fuels and their variants is shown on the Energy Resources page. Oil is probably the most convenient fuel and thirty years ago it accounted for 30% of the consumption but it has mostly been replaced by coal as oil prices have risen faster than the price of coal due to insecurities of supply.