Cruzadinha

Palavras horizontais

1. Class of substances responsible for ozone depletion (3)
3. Name of environmental relationship when both animals have damages (11)
5. The environmental issue resulted from the excess of people in certain region (14)
7. The unique metal in liquid state at room temperature (7)

Palavras verticais

2. Name of effect when a substance stuck in animals and humans (15)
4. The chemical reaction that produces carbon dioxide and energy (10)
6. The most common biome in Canada (6)