Across
- 3. the action of restoring something that has been damaged to its former condition
- 5. the proportion of the incident light or radiation that is reflected by a surface, typically that of a planet or moon
- 8. a colorless unstable toxic gas with a pungent odor and powerful oxidizing properties, formed from oxygen by electrical discharges or ultraviolet light
- 11. the concentration of toxins in an organism as a result of its ingesting other plants or animals in which the toxins are more widely disbursed
- 12. the weather conditions prevailing in an area in general or over a long period
- 14. regarding humankind as the central or most important element of existence, especially as opposed to God or animals
- 15. the action of returning something to a former owner, place, or condition
- 16. the process of making an area more urban
Down
- 1. the presence in or introduction into the environment of a substance or thing that has harmful or poisonous effects
- 2. the action of reducing the severity, seriousness, or painfulness of something
- 4. all the waters on the earth's surface, such as lakes and seas, and sometimes including water over the earth's surface, such as clouds
- 6. a prolonged period of abnormally low rainfall, leading to a shortage of water
- 7. the changing of the structure of a gene, resulting in a variant form that may be transmitted to subsequent generations, caused by the alteration of single base units in DNA, or the deletion, insertion, or rearrangement of larger sections of genes or chromosomes
- 9. the fact or process of a species, family, or other group of animals or plants becoming extinct
- 10. illegally hunt or catch (game or fish) on land that is not one's own or in contravention of official protection
- 13. the science or practice of farming, including cultivation of the soil for the growing of crops and the rearing of animals to provide food, wool, and other products