Answer:
8. From 1800 to 1940, the population is likely increasing. This is because during this time period, there was significant global population growth due to factors such as improved healthcare, sanitation, and agricultural advancements.
9. From 1940 to 2040, the population is expected to continue increasing, although at a slower rate compared to the previous period. This is because advancements in medicine, technology, and quality of life have led to increased life expectancy and lower mortality rates, resulting in population growth.
10. From 2040 to 2100, the population trend could vary depending on various factors such as birth rates, mortality rates, and government policies. It is challenging to predict with certainty, but possibilities include continued growth, stabilization, or even decline, depending on factors like fertility rates and efforts to control population growth.
11. The prediction for the population trend is influenced by multiple factors such as fertility rates, mortality rates, healthcare advancements, migration patterns, and socioeconomic changes. It is important to consider various scenarios and factors when making predictions about population trends.