Birth and death are eternal parts of life.
birth and death are two inevitable phenomena
The birth of Jesus Christ is celebrated on Christmas.
Death is inevitable.
it is death
His death was accidental.
The death of his grandmother was very hard, he was so close to her.
Example sentence - Three year old Wilbur did not understand what the death of his grandfather meant.
Death is normal.
The death rate of stupid people is astounding.
Black Death was caused by the bacteria Yersinia pestis.
Example sentence - Our monthly military allotment increased after the birth of our son.
Example sentence - The royal heiress gave birth to a princess.