1) What’s the formula used for calculating any sides of a right angle triangle a) a² + b² = c² b) a + b = c² c) a² + b² = c d) a + b = c 2) calculate the base  a) 9 cm b) 8 cm c) 6 cm d) 7 cm 3) what is incorrect function of stomata in a plant  a) Gives a green colour  b) helps in storage c) helps in flow of water d) helps in exchange of gases 4) Xylem helps in flow of water or food a) water b) both c) None of these d) food 5) what is the chemical formula of iron a) Ir b) Fe c) C d) I 6) cover 273 kelvin into Celsius a) 273 c b) 0 c) 546 c d) -273 c 7) what is the importance of glucose in our body a) energy b) heart cerculation c) transportation d) excreasion 8) solve:- 2x + 3 = 23 a) x = 0 b) X = 10 c) X = 31 d) X = 20

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