Weight of an object on the moon is ............ the weight of the object on earth.
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The exchange of materials between blood and interstitial fluid occurs only at the _____.
The process of electric discharge between clouds and the earth or between different clouds causes _____________.
Limonitic ore is the ore of which metal?
Limonite is one of the two principal iron ores, the other being hematite, and has been mined for the production of iron.
Who was the first Indian astronomer to calculate the time taken by earth to orbit the sun?
What does BOD5 refer to?
Which part of the plant gives us saffron?
The innermost layer is the core with a radius of about ___________ km.