1. 1. Energy
2. 2. Acid rain It is a result of combination of water containing chemical elements.
3. 3. Atom The smallest part of an element that still has the chemical propierties of the element.
4. 4. Biomass Organic mass produced by a biological process. It is used as energy resource.
5. 5. Coal A mineral substance made of carbon used as a fuel.
6. 6. The process of burning. Combustion Hydropower
7. 7. Matter that can be burned to create heat or power. Fuel Hydropower
8. 8. Hydroelectic power. Power made by water. Hydropower Hydropower
9. 9. Toxic emissions from factories that contamins the environment. Pollution Hydropower
10. 10. Question
11. 11. What is a mineral substance made of carbon, used as a fuel ? a)Iron b)Coal c)Granite
12. 12. What is a result of combination of water containing chemical elements? a)Combustion b)Polluction c)Acid rain
13. 13. What is the smallest part of an element that sill har the chemiral properties of the element ? a)Coal b)Atom c)Biomass