Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
Not suitable for people who are easily frightened or shocked.
A small, visible part of a much larger situation or problem that remains hidden.
To use something as a source of energy or fuel; to be strengthened by something.
To be isolated or separated from someone or something.
The state of the natural environment and its ability to support life.
To contain or provide a habitat for organisms, often used in the context of biodiversity or pathogens.
The inherent characteristics or properties of something.
A body of rock that is identifiable by its lithologic characteristics and stratigraphic position.
The path of development or evolution followed by a species or system over time.
Organisms or physical factors used to gauge the health or state of an ecosystem.