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CBSE->Plus 1 Biology Science Questions

Total Questions 411
what is mean verbal communication ?
what is mean by alphabets ?
In an equilateral triangle ABC, D is a point on side BC such that BD = 1/3 BC. Prove that 9AD2 = 7AB2. Let the side of the equilateral triangle be a, and AE be the alt
PQR is a triangle right angled at P and M is a point on QR such that PM ? QR. Show that PM2 = QM × MR.
Sides of a triangle are 7cm, 24 cm, 25 cm. Determine whether it is a right angle? If it is, write the length of its hypotenuse.
Prove that the area of an equilateral triangle described on one side of a square is equal to half the area of the equilateral triangle described on one of its diagonals.
If the areas of two similar triangles are equal, prove that they are congruent.
Diagonals of a trapezium ABCD with AB||DC intersect each other at the point O. If AB = 2CD, Find the ratio of the areas of triangles AOB and COD.
Let ? ABC ~ ? DEF and their areas be, respectively, 64 cm2 and 121 cm2. If EF = 15.4cm, find BC.
Name the four challenges being faced by Indian democracy?
Describe casteism as a challenge to Indian democracy?
Give any four suggestions to check Regionalism in India?
What do you understand by ‘Challenges of Democracy’?
Write a short note on challenge of deepening of democracy?
What do you understand of regionalism?
What are the legal ways of reforming politics?
What is the most common form of democracy in today’s world?
Mention any two measures to remove poverty in India?
What types of challenges are being faced by democracy?
Define the term ‘Democratic Reform’?