Across
- 3. cover or envelop so as to conceal from view
- 5. the magnitude or intensity that must be exceeded for a certain reaction, phenomenon, result, or condition to occur or be manifested
- 11. the degree or intensity of heat present in a substance or object, especially as expressed according to a comparative scale and shown by a thermometer or perceived by touch
- 13. the state of being free from illness or injury
- 14. institute or conduct legal proceedings against (a person or organization)
- 16. performed an act, usually with a negative connotation
- 17. a visible suspension of carbon or other particles in air, typically one emitted from a burning substance
- 18. a course or principle of action adopted or proposed by an organization or individual
- 20. inhalation and exhalation of air; breathing
- 21. continuing with great force or intensity
- 22. the natural world, as a whole or in a particular geographical area, especially as affected by human activity
- 23. contrary to or forbidden by law, especially criminal law
- 24. a process in which substances combine chemically with oxygen from the air and typically give out bright light, heat, and smoke; combustion or burning
- 25. a small area with a relatively high temperature in comparison to its surroundings
- 28. fairly high temperature
- 29. a sharp increase in the magnitude or concentration of something
Down
- 1. interrupt (an event, activity, or process) by causing a disturbance or problem
- 2. the presence in or introduction into the environment of a substance which has harmful or poisonous effects
- 4. humiliation and shame
- 6. perpetrate or carry out (a mistake, crime, or immoral act)
- 7. a slight obscuration of the lower atmosphere, typically caused by fine suspended particles
- 8. the state of being clear of trees
- 9. a fact or situation that is observed to exist or happen, especially one whose cause or explanation is in question
- 10. the state of the atmosphere at a particular place and time as regards heat, cloudiness, dryness, sunshine, wind, rain
- 12. burn slowly with smoke but no flame
- 15. a time of intense difficulty or danger
- 19. affected by physical illness
- 22. the production and discharge of something, especially gas or radiation
- 26. matters or situations regarded as unwelcome or harmful and needing to be dealt with and overcome
- 27. fog or haze intensified by smoke or other atmospheric pollutants
