40. When a typical male speaker phonates, his vocal folds open and close times per second.
Select one:
a. 2
b. 10
c. 125
d. 500
e. 1,000

The correct answer is - option C. 125.

Explanation:

Phonates are the ability to produce or articulate the sound especially with the lp of the viba\ration by his or her vocal folds. When an individual vibrates his vocal folds or speaks the sound produces which is known as the phonation.

When a typical male speaker phonates, his vocal folds open and close

125 times per second.

The correct answer is - option C. 125.

explanation:

b,bacteria convert nitrates

into nitrogen gas.

d,plants and animals take in

and use nitrogen compounds.

e,bacteria break down waste    

products and return nitrogen  

to the soil.

a,bacteria convert atmospheric

nitrogen to ammonia.

c,bacteria convert ammonia

to nitrites and nitrates.