CBSE – Class 8

Questions & Answers

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Showing 75 question(s) for CBSE Class 8
Science
Q1. What is irrigation?
Answer: Supplying water to crops.
Science
Q2. What are microbes?
Answer: Tiny living organisms.
Science
Q3. What is fossil fuel?
Answer: Fuel formed from dead organisms.
Science
Q4. What is force?
Answer: Push or pull.
Maths
Q5. Rational number?
Answer: Number in form p/q.
Maths
Q6. Linear equation?
Answer: Equation of degree 1.
Maths
Q7. Square of 5?
Answer: 25
Maths
Q8. Area of square?
Answer: Side²
Science
Q9. Electric current?
Answer: Flow of charge.
Science
Q10. Refraction?
Answer: Bending of light.
Maths
Q11. 6²?
Answer: 36
Maths
Q12. 3³?
Answer: 27
Science
Q13. Cell?
Answer: Basic unit of life.
Science
Q14. Unit of force?
Answer: Newton
Maths
Q15. Right angle?
Answer: 90°
Science
Q16. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q17. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q18. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q19. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q20. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q21. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q22. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q23. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q24. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q25. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q26. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q27. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q28. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q29. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q30. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q31. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q32. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q33. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q34. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q35. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q36. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q37. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q38. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q39. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q40. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q41. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q42. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Science
Q43. What is photosynthesis? (Class 8)
Answer: Photosynthesis is the process by which green plants prepare food using sunlight.
Science
Q44. Define evaporation. (Class 8)
Answer: Evaporation is the process of liquid changing into vapour at any temperature.
Science
Q45. State Newton's first law. (Class 8)
Answer: An object remains at rest or in motion unless acted upon by an external force.
Maths
Q46. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q47. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q48. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q49. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q50. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q51. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q52. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q53. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q54. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q55. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q56. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q57. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q58. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q59. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q60. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q61. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q62. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q63. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q64. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q65. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q66. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q67. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q68. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q69. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q70. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q71. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q72. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.
Maths
Q73. What is a quadratic equation? (Class 8)
Answer: An equation of degree two is called a quadratic equation.
Maths
Q74. Solve x² - 4 = 0 (Class 8)
Answer: The solutions are x = 2 and x = -2.
Maths
Q75. State Pythagoras theorem. (Class 8)
Answer: Square of hypotenuse equals sum of squares of other two sides.