Examlex
Explain the operation of the oxygen cycle on Earth. Include its pathways through the various spheres of the environment.
Chief
A leader or head of a group, organization, or tribe, often holding authority and responsibility for decision-making and governance.
Black Death
A devastating global epidemic of bubonic plague that struck Europe and Asia in the mid-1300s.
Devastating Catastrophe
A disastrous event that causes extensive damage, loss, and suffering, drastically altering the affected area's natural and social environments.
Europe's Population
The total number of inhabitants living in Europe, a continent known for its diverse cultures, languages, and historical influences on global affairs.
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