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Crucigrama Sopa de Letras Hoja de Trabajo
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Mario Molina

Horizontales
A thinning of the ozone layer
Consisting of two atoms
Chemist who discovered cfcs
Chlorofluorocarbon
A matter that will expand freely
Made or caused by human beings
O2
Verticales
An expert in chemistry
Consisting of one atom
Ultraviolet rays
The emission of energy as electromagnetic waves or as moving subatomic particles
O3