SELF ASSESSMENT 15.6

 1. FOSSIL FUEL ARE CONSIDERED AS A SOURCE OF ENERGY WHICH IS NOT RENEWABLE. WHY IS IT SO?

Fossil fuels are considered non-renewable sources of energy because when they are burnt, they are finished. When the last barrel of oil has been pumped out of the ground there is no more. And also it's non-renewable because fossil fuels take hundreds of millions of years to form under the Earth's surface. It will take another million years for more to be produced, so we only have a limited supply. 

2. WHAT HAPPENS IF THE FUEL CONSUMPTION IS NOT SPREAD?

If fuel consumption is not spread, its going to be harder for us to live. Since fossil fuels are used to power thing up for example oil is use for cars, coal for industries, natural gas for stove, and many others. So thats why if fuel consumption is not spread is going to be harder for us to live. And because of that we have to use alternative energy like solar and wind energy.

3. WRITE DOWN THE DANGEROUS ISSUES OF HAVING A NUCLEAR POWER PLANT.

Although nuclear power plants offer an new source of energy, nuclear power plants could also be dangerous as it is radioactive. For example in Japan when there was tsunami. The tsunami hits the nuclear power plant. Because of that people who lives nearby have to move since of the water that is contaminated by the nuclear power plant.

4. ACCORDING TO YOUR OPINION, IN ORDER TO PRODUCE ELECTRICAL ENERGY, WHAT IS THE BEST ENERGY THAT FITS WITH THE CURRENT SITUATION AND IS POLLUTION FREE?

The best way to produce electricity and its pollution free is Wind Energy or Solar Energy. Both wind and solar energy are pollution free because wind energy produces energy from wind that is received using a windmill that spins while solar energy uses solar panels to get energy directly from the sun. By using these alternative ways to get energy easily, there are also some advantages of using these alternative energy. for example wind energy; it needs lots of wind speed and it  generate a little energy. While solar energy; its low efficiency. it requires large areas of land.    

5. WRITE DOWN YOUR SUGGESTIONS IN ORDER TO PRODUCE A VERY HIGH TEMPERATURE, SO THAT A LARGE AMOUNT OF ELECTRICITY CAN BE GENERATED FROM THE USE OF SEA WATER.

By using nuclear energy. Since nuclear energy is caused by the splitting of the atomic nucleus, the  reaction is called fission. Fission is the splitting of a heavy nucleus into two lighter nuclei that releases a huge amount of energy and fusion is the process of joining the nuclei of atoms accompanied by huge energy release. The fuel for fusion is deuterium or heavy hydrogen which you can get from sea water. Sea water contains unlimited amounts of hydrogen. But we need at least 100 million degrees Celsius to join the nuclei of atoms which requires advanced technology.