Question

how can we cry underwater

Answer 1

No, it is not possible to cry under water, because crying requires breathing rapidly and since you can't breathe underwater, unless you can, you will most likely drown from excess of water in your mouth/lungs. However, tears can be shed just like you are able to pass urine for that matter.

Answer 2

${\green {\boxed {\mathtt {✓verified\:answer}}}}$

You can cry but it would be a bit un-comfortable.

Cry is an expression of anguish and sadness. Cry has three distinct formats - weep / sob / wail.

Weep is the subtle format with tears rolling down and influence of it on the breathing cycle is minimal.

Sob is a stronger expression and agitates the breathing cycle with stifled voice outbursts.

Wail is the most expressive form of crying and agitates breathing cycle accompanied with high pitched voiceferous expressions.

Now as long as you can manage your breathing cycle as demanded by the each format of cry you can cry under the water.

The only downside is your tears will be washed off instantly.☆☆☆