Answer:
78.09% nitrogen
20.95%oxygen
0.03%carbon dioxide
0.93%other gases
this is the composition of air
it is essential for respiration
Explanation:
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The answer is force because Force is needed to change the direction of a moving mass.
Answer: His tumbling experience
Explanation:
The tumbling experience is required to be determined as in tumbling one learn to show movement on the floor. They perform the stretching exercises, flips, somersaults, handspring and handsprings. One learn tumbling from childhood, till adolescence and adulthood one gets a good hold on the body and flexibility. So, Jerry must need to know about his tumbling experience about his body flexibility.