Question

- Which of the following is not an involuntary action?
(a) Vomiting (b) Salivation (c) Heart beat
(d) Chewing​

Answer 1

s a l i v a t i o n

Explanation:

because spitting again and again is an involuntary action

Answer 2

Answer: D is the correct answer because vomating , salivation , heartbeat are not in our will but chewing is involentry.