[
  {
    "id": 0,
    "question": "What is the gravitational acceleration on Earth's surface?",
    "options": {
      "a": "8.9 m/s²",
      "b": "9.8 m/s²",
      "c": "10.5 m/s²",
      "d": "11.2 m/s²"
    }
  },
  {
    "id": 1,
    "question": "Which planet is known as the Red Planet?",
    "options": {
      "a": "Venus",
      "b": "Jupiter",
      "c": "Mars",
      "d": "Saturn"
    }
  },
  {
    "id": 2,
    "question": "What is the chemical symbol for gold?",
    "options": {
      "a": "Go",
      "b": "Gd",
      "c": "Au",
      "d": "Ag"
    }
  },
  {
    "id": 3,
    "question": "How many chambers does a human heart have?",
    "options": {
      "a": "2",
      "b": "3",
      "c": "4",
      "d": "5"
    }
  },
  {
    "id": 4,
    "question": "What is the speed of light in a vacuum?",
    "options": {
      "a": "299,792,458 m/s",
      "b": "300,000,000 m/s",
      "c": "298,000,000 m/s",
      "d": "301,000,000 m/s"
    }
  },
  {
    "id": 5,
    "question": "Which gas makes up approximately 78% of Earth's atmosphere?",
    "options": {
      "a": "Oxygen",
      "b": "Carbon dioxide",
      "c": "Nitrogen",
      "d": "Argon"
    }
  },
  {
    "id": 6,
    "question": "What is the hardest natural substance on Earth?",
    "options": {
      "a": "Quartz",
      "b": "Diamond",
      "c": "Graphite",
      "d": "Titanium"
    }
  },
  {
    "id": 7,
    "question": "How many bones are in an adult human body?",
    "options": {
      "a": "196",
      "b": "206",
      "c": "216",
      "d": "226"
    }
  },
  {
    "id": 8,
    "question": "What is the pH of pure water?",
    "options": {
      "a": "6",
      "b": "7",
      "c": "8",
      "d": "9"
    }
  },
  {
    "id": 9,
    "question": "Which organelle is known as the powerhouse of the cell?",
    "options": {
      "a": "Nucleus",
      "b": "Ribosome",
      "c": "Mitochondria",
      "d": "Golgi apparatus"
    }
  },
  {
    "id": 10,
    "question": "What is the most abundant element in the universe?",
    "options": {
      "a": "Helium",
      "b": "Hydrogen",
      "c": "Oxygen",
      "d": "Carbon"
    }
  },
  {
    "id": 11,
    "question": "At what temperature does water boil at sea level?",
    "options": {
      "a": "90°C",
      "b": "95°C",
      "c": "100°C",
      "d": "105°C"
    }
  },
  {
    "id": 12,
    "question": "How many chromosomes do humans have?",
    "options": {
      "a": "44",
      "b": "46",
      "c": "48",
      "d": "50"
    }
  },
  {
    "id": 13,
    "question": "What is the smallest unit of matter?",
    "options": {
      "a": "Molecule",
      "b": "Atom",
      "c": "Electron",
      "d": "Proton"
    }
  },
  {
    "id": 14,
    "question": "Which type of electromagnetic radiation has the longest wavelength?",
    "options": {
      "a": "X-rays",
      "b": "Visible light",
      "c": "Radio waves",
      "d": "Gamma rays"
    }
  }
]