Across
- 3. to grow or change and become more advanced
- 5. relating to the energy that is released when the nucleus of an atom
- 6. can be produced as quickly as it is used
- 8. to make something less
- 10. found in the sea, or relating to the sea
Down
- 1. to affect or include someone or something in an activity
- 2. very unpleasant or bad
- 4. to reduce the amount of something
- 7. the act of sending gas, heat, light, etc. out into the air, or an amount of gas, heat, light
- 9. a hard, black substance that is dug from under the ground and burnt as fuel