Which of the following pairs is NOT correctly matched?
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Polio is a disease caused by which of the following?
_______ is the study of the physical form and external structure of plants.
What is the name of the asteroid that causes Geminid meteor shower display around 15 December of every year?
Which of the following three R's are regarded as environment friendly?
UV rays coming from Sun, majorly causes which cancer?
The outermost layer of Earth is called _______.
What is Syzygy?