Across
- 2. Usual conditions of temperature.
- 5. Fossil fuel, used in cars.
- 6. Something that cannot be predicted.
- 8. The process of warming up.
Down
- 1. The process of changing from solid to liquid.
- 3. A layer made up of gas. From 9/50 km above us
- 4. A series of actions.
- 7. Sinonim of alteration