Narrative Chain, it means to link words in a list together into a sentence or a story. By using the words and associating them with each other you create a firmer connection between the new words and those already stored in your memory.
You can write things down, read the material out loud, and read and reread your materials until you pretty much memorize it
Explanation:
increase in longevity raises the average age of the population by increasing the numbers of surviving older people. ... More specifically, it is the large decline in the overall fertility rate over the last half century that is primarily responsible for the population ageing in the world's most developed countries.
Developing countries fall relatively behind developed countries in terms of infrastructure, access of the population to sanitation, healthcare, safe drinking, water, and energy, security, and pollution-free environment and tend to show a higher degree of poverty, corruption, and political instability.
THey tried to stay isolationist. But it failed and due to opium eventually china was defenseless to England
