Human blood platelets releases ___ which helps in clotting of blood.
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Bacteria, blue-green algae or cyanobacteria and mycoplasma are examples of organisms of which kingdom?
Ice floats on water because its density is
A boat goes 15 km upstream and 10 1/2 km down stream in 3 hrs 15 min. It goes 12 km upstream and 14 km downstream in 3 hrs. What is the speed of the boat in still water?
Which celebrity is the author of the book 'An Unsuitable Boy'?
If the frequency of a sound wave of given velocity is increased , how will it affect its wavelength?
Which country, in January 2018 broke India's monopoly in providing Internet access to Nepal by becoming country's second Internet service provider?
'737 MAX' is the airliner of which famous company?
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