Answer:
The population of the world is continuously growing. This not just causes over-population but reduces employment rates. Not only the population itself was growing, but also the doubling time was decreasing, which basically means that growth itself was growing. This rapid growth increase was mainly caused by a decreasing death rate (more rapidly than birth rate), and particularly an increase in average human age.
HOPE IT HELPS :)
PLEASE MARK IT THE BRAINLIEST!