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What happens when we breathe in?(i) Size of our chest increases.(ii) Size of our chest decreases.(iii) Carbon dioxide is removed from our body(iv) Air enters our lungs.a)(i) and (iii) are correctb)(i) and (iv) are correctc)(ii) and (iii) are correctd)(ii) and (iv) are correctCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about What happens when we breathe in?(i) Size of our chest increases.(ii) Size of our chest decreases.(iii) Carbon dioxide is removed from our body(iv) Air enters our lungs.a)(i) and (iii) are correctb)(i) and (iv) are correctc)(ii) and (iii) are correctd)(ii) and (iv) are correctCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What happens when we breathe in?(i) Size of our chest increases.(ii) Size of our chest decreases.(iii) Carbon dioxide is removed from our body(iv) Air enters our lungs.a)(i) and (iii) are correctb)(i) and (iv) are correctc)(ii) and (iii) are correctd)(ii) and (iv) are correctCorrect answer is option 'B'. Can you explain this answer?.

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