Endangered species
Climate
Ecosystem
Extinction
Environment
National Park
Habitat
Organism
The state of being no longer in existence
The surroundings or conditions in which a person, animal, or plant lives or operates.
The type of environment in which an organism normally lives
Organisms interacting with their physical environment
The weather in some location averaged over a period of time
A tract of land declared by the national government to be public property
A species whose numbers are so small that the species is at risk of extinction
A living thing that can act or function independently