[{"id": 1, "type": "multiple_choice", "options": ["Red, gray, black", "Large, small, tiny", "Hard, soft, medium", "Igneous, sedimentary, metamorphic"], "question": "What are the three types of rocks?", "correct_answer": "Igneous, sedimentary, metamorphic"}, {"id": 2, "type": "written_response", "question": "Explain the scientific concept covered in \"Human Impact on Environment Quiz\" and provide a real-world example.", "correct_answer": null}, {"id": 3, "type": "multiple_choice", "options": ["Igneous, sedimentary, metamorphic", "Large, small, tiny", "Red, gray, black", "Hard, soft, medium"], "question": "What are the three types of rocks?", "correct_answer": "Igneous, sedimentary, metamorphic"}, {"id": 4, "type": "multiple_choice", "options": ["Red, gray, black", "Large, small, tiny", "Hard, soft, medium", "Igneous, sedimentary, metamorphic"], "question": "What are the three types of rocks?", "correct_answer": "Igneous, sedimentary, metamorphic"}, {"id": 5, "type": "true_false", "question": "The scientific method always begins with making an observation or asking a question.", "correct_answer": "True"}, {"id": 6, "type": "multiple_choice", "options": ["Nucleus", "Mitochondria", "Cell membrane", "Ribosome"], "question": "What organelle is known as the \"powerhouse of the cell\"?", "correct_answer": "Mitochondria"}, {"id": 7, "type": "written_response", "question": "Explain the scientific concept covered in \"Human Impact on Environment Quiz\" and provide a real-world example.", "correct_answer": null}, {"id": 8, "type": "true_false", "question": "The scientific method always begins with making an observation or asking a question.", "correct_answer": "True"}]