Across
- 2. Wireless telegraphy or telephony
- 3. Protective gear against gas
- 6. Strong wind in a vortex form
- 7. The sudden,deadly,loud and violent release of energy
- 8. Scale for measuring earthquakes
- 11. Constant changes in the environment
- 12. a state, process, or instance of combustion in which fuel or other material is ignited and combined with oxygen, giving off light, heat, and flame.
- 13. The action or process of making land, water, air, etc., dirty and not safe or suitable to use.
- 15. A underground structure that covers or protects people or things
- 16. The act or process of evacuating, or the condition of being evacuate
- 19. Name the weapon type that users germs and bacteria to form diseases
- 20. A state or period of fighting between countries or groups
- 21. Group of people that the use of violence and threats to intimidate or coerce, especially for political purposes
- 22. A big tidal wave that can cause emergency
Down
- 1. A vent in the earth's crust through which lava, steam, ashes, etc.
- 4. A structure that covers or protects people or things
- 5. An a type of object that is emits waves alpha, beta or gama.
- 9. 112
- 10. Perceptible shaking of the surface of the earth
- 12. Is an overflow of water that submerges land which is usually dry.
- 14. A vessel for transport by water, constructed to provide buoyancy by excluding water and shaped to give stability and permit propulsion
- 17. A situation on certain territory or area as a results of an accident
- 18. Emission or transmission of energy in the form of waves (gama,..) or particles through space or through a material medium.