Fix grammar errors in this sentence: The increase in life expectancy and decline in fertility are two main causes of ageing population.
The increase in the number of people who are born in the last 10 years is a cause of the increase in the number of people who die in the last 10 years.
- The increase in the number of people born in the last 10 years is a cause of the increase in the number of people born in the last 10 years.
- The increase in the number of people born in the last 10 years is a cause of the increase in the
The increase in the number of people who are aged 65 and over is a major cause of the increase in the number of deaths in the population.
The increase in the number of people aged 65 and over is a major cause of the increase in the number of deaths in the population.
The increase in the number of people aged 65 and over is a major cause of the increase in the number of deaths in the population.
The increase in the number of people aged