give reason for the following :
1 - solar energy is better than thermal energy.
2- water should not be thrown over a fire caused by petrol.
3- cng is better fuel for automobiles .
4- coal is called a fossil fuel.
Answers
Explanation:
1.] Solar energy is a renewable resource of energy as it can be used to produce electricity as long as the Sun exists. While thermal power is no-renewable source of energy because coal is used to generate electricity. 2) Solar energy is an alternative for fossil fuels as it is non-polluting and clean source of energy.
2.] Water should not be thrown on fire caused by oil/petrol/gasoline etc because they are lighter than water so they continues to float over water hence continues to burn. So rather than controlling the fire it will spread the fire.
3.] obviously it is a better fuel as it reduces pollution. and is environment friendly.
4.] coal is called a fossil fuel because it is formed by the dead remains of plants and organic matter.