When is World Wetlands Day celebrated annually?
World Wetlands Day is observed on the 2nd of February each year to raise awareness about the importance of wetlands and to promote their conservation. Wetlands play a crucial role in biodiversity, water purification, flood control, and providing habitats for various species. Therefore, option B) 2nd February is the correct answer.
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The 11th term of an AP is 80 less than the first term. If the second term is 88, find the third term.
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Mean of a grouped data calculated using direct method, assumed mean method or step deviation method:
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