Potential answers for "Ecologists' study"

⭐⭐⭐⭐ BIOMES
⭐⭐ OZONE
⭐⭐ MADAGASCAR
⭐⭐ NERDS
⭐⭐ HABITAT
⭐⭐ RAINFORESTS
⭐⭐ EPA
⭐ CURRICULUM
⭐ CRYOGENY
⭐ BACTERIA

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