A. Relaxing under a tree.
The parasympathetic nervous system is known as the “rest and digest” system. Activities that require as little movement as possible help the heart rate to slow down. The other activities would be associated with the Sympathetic nervous system which is known as the “fight or flight,” or when your heart rate is up and running.
As per Newton's II law we know that

here we know that


now the mass of the object will be given as



so mass of the object will be 13.3 kg
Answer:
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Explanation:
Convection is the right answer!!!
Ps.: hope this helps!!!!