The order of the planets in the solar system, starting nearest the sun and working outward is the following:
Mercury,
Venus,
Earth,
Mars,
Jupiter,
Saturn,
Uranus,
Neptune
and then the possible Planet Nine. If you insist on including Pluto, it would come after Neptune on the list.
hope this helps:))
Think about the old-age ratio.
The old-age ratio is the number of not working/economically inactive compared to the number of people of working age.
The older generations (financially inactive) are dependent on the working group (let's say ages 15-64), since they pay the majority of the taxes and have essential jobs. A lot of elders are dependent on financial aids (which are paid for by the tax-payers) and essential workers (nurses, doctors etc.).
If the younger generations were to disappear, the working group would get smaller and smaller as more people retire. As the working group gets smaller, the retired group gets larger, creating an increased demand on the working group until it would eventually reach a breaking point. The old-age ratio would increase.
The correct order of the events is as follows:
1. The Portuguese establish sugar plantations on islands off the coast of West Africa;
2. Portuguese laborers are unwilling to leave their homeland;
3. The Portuguese bring in slaves to work on their plantations;
4. Other European countries also start purchasing enslaved Africans;
The Portuguese didn't really investigated the situation about the labor force before they make sugar plantations, so they set them up, and it turned out that the Portuguese people are not willing to come and work on them, so they were left with plantations without laborers. Since they didn't wanted this investment to be for nothing, they started buying African slaves from some of the stronger tribes that were keeping slaves. They used them as labor force afterwards, and saw the long term benefit of it, so started to purchase more and more slaves. After the word spread out, and also after the other European countries started to have colonies, they too started to purchase African slaves, thus making it a huge business for both, them and the stronger African tribes that were selling the slaves to them.
