They are considered so because are the indispensable parts of the nature cycle.Without formation,decay cannot be possible and similarly,formation cannot be possible without decay.In addition to this,THEY ARE IN A CHRONOLOGICAL MANNER SET BY NATURE and that's why cannot be seperated and so together constitute the cycle of nature.
Answer: Kinetic Energy
Explanation: Thermal energy comes from moving particles, and that’s what Kinetic Energy does, so Kinetic energy would most likely be the answer.
Answer:
I believe that 1, 4 and 5 are the correct ones.
Explanation:
Autorhythmic, contractile, cardiac
I believe it is the last choice