Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abruptly came out. For the next few minutes, she was breathing heavily/fast. Answer the following questions.
(a) What happened to her muscles when she did strenuouly exercised?
(b) How did her breathing rate change?

Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abrupty came out. For the next few minutes, she was breathing heacvily/fast. Answer the following questions. What happened to her muscles when she did strenuously exercised?

Radha was running on a treadmill at a great speed for 15 minutes continuously. She stopped the treadmill and abrupty came out. For the next few minutes, she was breathing heacvily/fast. Answer the following questions. How did here breathing rate change?

Meeta father was driving her to the school. At the traffice signal she noticed that each traffic light was made of many tiny lights instead of a signal bulb. When Meeta asked this question to her father's he explained the reason for this. Answer the following question based on above information: (i) What were the values displayed by Meeta and her father? (ii) What answer did Meeta's father give? (iii) What are the tiny light in traffice signal called and how do these operate?

Meeta father was driving her to the school. At the traffice signal she noticed that each traffic light was made of many tiny lights instead of a signal bulb. When Meeta asked this question to her father's he explained the reason for this. Answer the following question based on above information: (i) What were the values displayed by Meeta and her father? (ii) What answer did Meeta's father give? (iii) What are the tiny light in traffice signal called and how do these operate?

Paheli participated in a 400m race competition held at her school and won the race. When she came home she had mixed feeling so joy and pain as she had cramps in her leg muscles. After a massage she was relieved of the pain. Answer the following questions related to the situation Why did she feel comfortable after a massage?

Paheli participated in a 400m race competition held at her school and won the race. When she came home she had mixed feeling so joy and pain as she had cramps in her leg muscles. After a massage she was relieved of the pain. Answer the following questions related to the situation What can be the possible reasons for the pain in her legs?