question_text,question_type,options,correct_answer,marks
"What is the capital of France?",multiple_choice,"London|Paris|Berlin|Madrid","Paris",1
"The Pacific Ocean is the largest ocean on Earth.",true_false,"True|False","True",1
"What is the chemical symbol for gold?",short_answer,"","Au",2
"Explain the water cycle and its importance to Earth's ecosystem.",essay,"","",5