Which of the following three R's are regarded as environment friendly?
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Living things constitute the biotic component of the ___________________.
Which one of the following is a cation?
What is the main purpose of white blood corpuscles?
Gaseous exchange takes place in leaves through tiny pores for the purpose of photosynthesis. What are these pores?
Which among the following is called quicksilver?
Which of the following organs produces the enzyme lipase?
Name the first Indian to get Nobel prize in economics.