Question

Kajal participated in a 200 m race held at her school and won the race. She started breathing faster and deeper, just after the race. When she came home, she was tired and had cramps in her leg muscles. After a massage, she was relieved of the pain....
1.why did kajal start breathing faster and deeper after the race?
a) to get more oxygen.
b)to get rid of ethanol.
c)to get more carbon dioxide.
d)to get relief from pain.
2.what could be possible reason for the cramps.
a)due to accumulation of ethanol.
b)due to accumulation of lactic acid.
c) due to aerobic respiration.
d)due to release of oxygen.
3.why did she feel comfortable after a massage?
a)ethanol and carbon dioxide
b)lactic acid and energy
c) carbon dioxide and energy
d)ethanol and energy
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Answer 1

1 d

2a

3d

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Answer 2

Answer:

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