Question
Each sentence below has a blank. Choose the most
appropriate word that best fits the context of the sentence. Healthy coral reefs provide a ______ habitat for numerous marine species, supporting ecological balance and food chains.Solution
Context → reefs support life and biodiversity  Correct → thriving (full of life and growth) Option meanings: Fragile – delicate Hostile – unfriendly environment Barren – lifeless Thriving – flourishing ( correct)
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The average of 27 numbers is 20.The average of first 13 numbers is 15 and that of the last 13 numbers is 18. What will be the 27th number?
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