Across
- 3. Name the solid fossil fuel formed by decomposed plant material buried over millions of years.
- 5. What resources can’t be replaced, or nature will take a long time (millions of years) to replace?
- 7. Natural resources such as rivers, lakes, glaciers and groundwater are termed as:
- 8. Natural resources from which various metals and chemicals are extracted are termed as:
- 11. Energy from the Sun that is converted into thermal or electrical energy is known as:
- 12. Electricity produced by harnessing the energy of flowing water known as:
- 13. Fossil fuels in form of liquid and gaseous hydrocarbons found in underground reservoirs:
- 14. Power generated by harnessing wind energy using wind mills and turbines known as:
- 16. Plant matter grown to generate electricity, heat or use as fuel is referred to as:
Down
- 1. Power generated by utilizing the heat stored beneath the Earth’s surface is referred to as:
- 2. Natural resources that are converted by humans into various forms of usable energy are classified as:
- 4. What type of resources are constantly replaced by nature, and can be harvested indefinitely?
- 6. Natural resources from the biosphere, such as forests, crops and wildlife, are termed as:
- 9. Energy resources formed in the Earth’s crust from plant and animal matter over millions of years:
- 10. Electricity produced from energy released by controlled atomic fission is known as:
- 15. Energy and materials found in the nature that are used by the human society are termed as: