6. What specific process allows our body to expel carbon dioxide?
A. excretion
B. exhalation
C. inhalation
D. perspiration
7. Which of the following is NOT a good practice in taking care of the body.
A. Having regular exercise.
B. Eating too much sweet.
C. Observing proper hygiene.
D. Eating well-balanced diet
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Answer:
6. c
7. b
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