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Created page with "==Key Stage 3== ===Meaning=== A '''mass extinction''' is when a large number of species in a community become extinct at the same time."
==Key Stage 3==
===Meaning===
A '''mass extinction''' is when a large number of [[species]] in a [[community]] become [[extinct]] at the same time.
===Meaning===
A '''mass extinction''' is when a large number of [[species]] in a [[community]] become [[extinct]] at the same time.