class 10 science chapter 12 exercise solutions contains the following number of exercises and questions:
Exercise 12.1 includes 3 questions.
Exercise 12.2 consists of 3 questions.
Exercise 12.3 has 5 questions.
Exercise 12.4 comprises 2 questions.
Exercise 12.5 has 5 questions.
Exercise 12.6 contains 3 questions.
Exercise 12.7 comprises 2 questions.
Exercise 12.8 has 18 questions.
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