Across
- 5. Metal oxide rare on earth.
- 6. synonymous with concentrate
- 7. The farmer wants to improve the ... of his crops
- 8. In chemistry, a process for producing syngas by reaction of hydrocarbons with water.
Down
- 1. In chemistry, technique that uses direct electric current to drive an otherwise non-spontaneous chemical reaction.
- 2. In organic chemistry, a organic compound consisting entirely of hydrogen and carbon.
- 3. those that absorb and emit infrared radiation in the wavelength range emitted by Earth.
- 4. electrochemical cell that converts the chemical energy of a fuel and an oxidizing agent into electricity