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CBSE Questions

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All the objects which emit there own light are stars ,are there any exeptions.
Sir. Give some questions & Answers in the chapter structure of a business.
What is the difference b/w pvt.company and public co.??
When was consumer act passed in India.
a wave travelling along a string is described by y=0.005sin(80x-3t) in which the constants are in SI unit. calculate the amplitude , wavelength , time period and freequency of the wave.
a steel wire 0.72m long has a mass of 5*10^-3 kg. if the wire is under tension of 60 newton , what is the speed of transverse waves on the wire?
why did the earth is called a unique planet?
what is the name of the number keys in the right side of the keybord
what is the formula for finding the LSA of a cylinder?
One specific feature of its phylum: (1) Spirogyra (2) Agaricus (3) Moss (4) Fern (5) Pinus (6) Angiosperms (7) Earth worm (8) Cockroach (9) Bony fish (10) bird.
what is coniferous forest and what is its other name??
can u please say me the important questions from chapter circles
who is the president of world bank
SIR,WHEN THE ROCKETS ARE LAUNCHED WE CAN SEE FIRE ON ITS BACK. IF THERE IS FIRE THE OBJECTS NEAR THE ROCKETS WILL GET BURNED. IF IT IS NOT WHY?
who is our election commissioner?
When a snake dies its tail keep on shaking why & how
what are the judiciary power of prime minister?
What is mean by Pythagoras property?
write about volcanic eruption its causes.
why do we need to conserve mineral resources suggest some measures to conserve it