Describe an activity to show that exhaled air contains carbon dioxide.
Describe the changes that take place (i) around the rib cage (ii) diaphra
(iii) chest cavity during inspiration State the effect of these changes.
Value Based Question
It was time for the 400 m race in the annual athletic meet of the school. Shweta, who
sipped to win the race, maintained a clear lead over others till about 30 m from the finis
line. She then felt cramps in her legs but did not give up. She quickly took some dee
fast breaths and continued running. Her presence of mind, determination, courag
positive attitude, helped her to just manage to win the race. Rita and Neetu, who fir
second and third, respectively
, were the first to congratulate her on her success.
1. State the values displayed by Shweta.
2. Write about some situation in which you, or one of your friends, disp
behaviour similar to that of Rita and Neetu.
3. State the likely reason due to which Shweta felt cramps in her legs.
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Answer:
ask 1 question at a time . however
C6H1206 +602 = 6C02 + 6H2O + energy
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