Weight of an object on the moon is ............ the weight of the object on earth.
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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.
Which part of the plant gives us saffron?
Earth is also known as _______.
The process of electric discharge between clouds and the earth or between different clouds causes _____________.
The innermost layer is the core with a radius of about ___________ km.
The elemental composition of an adult human body by mass is
Who was the first Indian astronomer to calculate the time taken by earth to orbit the sun?