Google and NASA have joined hands to identify which two new planets around Kepler 90?
What do you call elements with Atomic Number between 57 and 71?
'Rare earth'(They are all metals)
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What happens when some charge is placed on a soap bubble?
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The blue colour of the clear sky is due to
As you go down into a well, your weight
Which one of the following types of laser is used in laser printers?
'Pencillin' which is used as an antibiotic is obtained from
The power of a lens is measured in:
Special 3-D photographs which have been taken with laser beams (and which make the objects look real) are called what?