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The Geography Supplement to Scholastic News.
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the movement of animals to another area at a particular time of year
Many kinds of birds, like these snow geese, begin their fall migration south when the weather starts to turn cold.
a group of people or animals born at about the same time
These ducklings are part of a new generation of ducks born in the spring.
an area of protected land set apart for a special purpose
This reserve in Mexico was created to protect the winter home of monarch butterflies.
substances not commonly found in nature that are produced by a chemical process
Many cleaning products are made with different chemicals.