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What is the unit of ozone layer thickness?

AFurman

BDobson Unit

CMicromort

DNone of the above

Answer:

B. Dobson Unit


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ഓസ്‌ട്രേലിയ, ന്യൂസിലാൻഡ്, ന്യൂ ഗിനിയ, ടാസ്മാനിയ എന്നിവ ഉൾപ്പെടുന്ന ജന്തുഭൗമശാസ്ത്രപരമായ മേഖല ഏതാണ്?