alleryStart learning →Why does your breathing become deeper when you run?
AThe air becomes thinner near you
BMuscles need more oxygen for respiration
CYour lungs grow bigger quickly
DYour blood stops carrying gases
Answer & Solution
Correct answer: B. Muscles need more oxygen for respiration
Working muscles respire faster and need more oxygen, so deeper breaths bring in more of it.
Keep practising Respiration in organisms
Browse all Respiration in organisms questions for Olympiad (Class 7), or explore more Science topics.
Related questions
A bacterial colony in waste water cleans up toxic arsenate. Which process do they use?Which breathing disorder name refers to stopping of breathing in sleep?Which gas is the end waste of both aerobic respiration and yeast fermentation?Which muscles lift the rib cage when you breathe in?Fermentation may begin even before oxygen runs out. In which activity?After a long sprint, what helps muscles recover from lactic acid?Which gas do we inhale that is used by cells to oxidise food?Which statement about fermentation without oxygen is correct?