What is the name of the asteroid that causes Geminid meteor shower display around 15 December of every year?
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Which of the following three R's are regarded as environment friendly?
The chemical that is used to ripen mangoes is
In 2004, NASA launched the Messenger Spacecraft to study ___.
The amount of BaSO4 formed on mixing an aqueous solution of 2.08 gm of BaCl2 and excess of dilute H2SO4 is ___.
(atomic weights : Ba = 137, Cl = 35.5, S = 32, O = 16)
Pneumonia affects which of the following organs of human body?
An economic system combining private and state enterprise is called as _____
How many groups and periods are present in the Modern Periodic Table?