Mark ‘T’ if the statement is true and ‘F’ if it is false: (i) During heavy exercise, the breathing rate of a person slows down. (T/F) (ii) Plants carry out photosynthesis only during the day and respiration only at night. (T/F) (iii) Frogs breathe through their skins as well as their lungs. (T/F) (iv) Fishes have lungs for respiration. (T/F) (v) The size of the chest cavity increases during inhalation. (T/F)
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
Solution:
- i) False
- ii) False
iii) True
- iv) False
- v) True
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