It means that all the land and countries in the earth belong to all people and are the property of any one person or group to decide whether to sell it to another person. It is like trying to sell air to someone, it doesn’t make any sense.
The answer would be, “Sorrow, Failed”.
Passed away is a very common way to say that someone has died
Both inventions were done by teenagers at their times.
Both inventions claimed to help the environment: Boyan Slat's machine would clean up trash floating in ocean. Duro-Aina Adebola, Akindele Abiola, Faleke Oluwatoyin, and Bello Eniola proposed power generation from urine that would not create carbon monoxide.
Unfortunately both inventions were also challenged by more established scientists and engineers.
A
more than one of these could be right but A is the best choice because it is about the PLANNING
