How will you know that whether the snake is safe or deadly.

If you were bitten by a snake, don’t panic. It might not have been poisonous.
A poisonous snake leaves large clear holes made by the front teeth. Non-poisonous snakes usually have 2 rows of teeth.
Poisonous snakes’ pupils look similar to cats’. Non-poisonous snakes have round pupils.
Poisonous snakes have solid scales on the ventral side of the body. Non-poisonous snakes have forked scales.