You have to attach your prompt completely.This world always changes and and it forces people to follow instantlythat change . In 21st century, there are many different things compared to the previous era such as technology, transortation transportation, and people.
Firstly, in the past, people only had a little low technology. However, nowadays, technology is growing fast faster. For example, today, there are many kinds of television. You can find television with 3 dimensions. It is obvious that technology in 21st century is better than handred hundred years ago. There are many new technologies like cell phone, internet, and robot, and they are really help us. Therefore, technology gives many benefits for many people in 21st century.
Next, as we know, people in this earth need transportation for helping their activities. Now, there are many kind mean of transportations that are around us. For example, in my hometown, people can go wherever they want easily because many transportation public transports are available and it is they are cheap. This example shows that transportation is developing rapidly in 21st century. Moreover, we can find car with high speed and plane which can fill pick up many people passengers. So, I think transportation is one of things that useful for many people in nowadays era.
find in your dictionary what is the different between transportation and transport. :)
The last is humankind . It is different between people in the past and people in the present. For example, several years ago, many people on this planet had low education, but, today, almost all people have had good education. It shows that human beings are always changing. Furthermore, The differences of people can also be seen through style of fashion and style of hair. Thus, it causes characteristic of people different too.
Based on oxford thesaurus
humankind : all people considered together as one group. (the third body)
people: more than one person, person in general. (introductory)don't use vocab which has different meaning.transortation
handred
(misspelling)
overall, i like your content. keep writing...!