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CBSE->Std 10 Questions

Total Questions 2595
A person travels on path and the average speed is 20 km/h and he returns on the same path with average speed 30 km/h what is his average speed of the trip?
Write the H.C.F of smallest composite number and smallest prime number.
what are the arguments to say against sustainable development in a debate ?
Abdul while driving to school,computes the average speed for his trip to be 20km/h.On bis return trip along the same away,there is a less traffic and the average speed is 30km/h.what is the average speed for the Abdul's trip ?
will u say more about lyososomes and mitochondria?
What is the formula for force ?
WHAT IS DEMOCRACY?
which method is commonly used for improving cattle breeds and why?
does colourful leaves have chlorophyll in them ? if no , then how do they synthesize their own food ?
what acts on the acidic natured food from stomach when it reaches the small intestine, to make it alkaline ?
prodcedure for compost and vermicompost
gases do not have fixed volume-give reason
Why do we get angry ?
structure of animal tissues
distinguish between autotrophs and heterotrophs
how does a snake reproduce
why respiration considered an exothermic reaction? explain
why is respiration considered as exothermic reaction explain
A copper wire has diameter 0.5 mm and resistivity of 1.6 x 10 raise to -8 ohm meter . what will be the length of this wire to make its resistance 10 ohm? How much does the resistance change if the diameter is doubled?
how can we balance a equation