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Science Weekly # 6

Across
the practice of saving the Earth’s resources and using them wisely
the Earth is full of these useful things
served under President Roosevelt and probably fi rst used the word conservation for protecting natural resources
one example of an inexhaustible resource
Down
wrote a book called “Silent Spring” in 1962
a fancy word for oil
a type of resource that can replace itself as it gets used
to use over and over again