||A type of oxygen that is produced by electricity and is in the air, mostly after a thunderstorm.
||A specific dwelling place where an animal lives.
||The process or act of defiling.
||The idea that all things living developed from very few simple life forms through several physical changes.
||A specific species that is at risk for extinction due to natural and human forces.
||The combination of smoke and fog in the air.
||The specific gas that surrounds the earth.
||Something that eliminates insects.
||A person who trespasses, usually to hunt or fish illegally.
||When something is completely gone and doesn't return.
||The retention of radiation from the sun into the earth's atmosphere that creates a rise in the temperature of the earth's surface.
||The area that surrounds the earth that may support life.
||The act of preserving; to keep from being used up or lost.