| Front | Montreal Protocol |
|---|---|
| Back | an international treaty in canada,1987 was signed to control the emission of ozone depleting substance |
Learn with these flashcards. Click next, previous, or up to navigate to more flashcards for this subject.
Next card: Soil erosion desertification human activities cultivation deforestation grazing
Previous card: Uv b aging skin,damage skin cells,skin cancers.inflammation cornea
Up to card list: NEET Biology ug