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CBSE->Std 10 Questions

Total Questions 2595
If a and b are two odd positive integers such that a >b,then prove that one of the two numbers (a+b) \2 and (a-b)\2 is odd and the other is even.
steps to prevent land degradation
How did technological and social factors help in giving hope to economy in the 19 century . State with example. (for 5 marks)
how did African people obtain their livelihood in 19 century? what initial problem had European colonial government to face in Africa. (for 5 marks)
Britain experience a sharp rise in food prices in late 18 century,which resulted migration of people at a large scale.Examine this statement. (for 5mark )
A rectangular courtyard is 18m 72cm long and 13m 20cm broad.It is to be paved with square tiles of the same size.Find the least possible number of such tiles.
what is the full form of UNDP ?
What is the function of platelets?
What is a simile?
What is the use of Rheostat in a circuit?
Why is Rheostat used in a circuit?
Why is respiration known as a biochemical process?
what is the use of sphincter muscle in anus?
what are the functions of mucus present in stomach?
mam, can you explain the whole process of digestion including the function of all glands take part in this process?
give two important uses of washing soda and baking soda.
what is neutralisation reaction?give two examples.
gnp?
write an activity to show that chlorophyll is necessary for photosynthesis
write an activity to show that chlorophyll is necessary for photosynthesis