Key vocabulary words with IPA pronunciation, definitions, example sentences, and interactive quizzes.
Phrases with type tags, bilingual definitions, usage notes, and example sentences.
The total amount of greenhouse gases produced to directly and indirectly support human activities.
To have a significant effect on a person or situation.
Natural fuels such as coal or gas, formed in the geological past from the remains of living organisms.
An action or work done by a group of people acting together.
Thick layers of ice covering the North and South Poles of a planet.
The main factors or forces that cause a particular situation or process to happen.
Thinking about and beginning to deal with an issue or problem.
To provide the power or motivation for a transformation or shift to occur.