Answer:
they did slavery and bad deeds
Explanation:
hope this helps
Answer:
Both inventions were done by teenagers at their times.
Both inventions claimed to help the environment Boyan slat's machine would clean up trash flouting in ocean. Duro - Aind adebola, Akindele Abiola, faleka 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.
The answer would be the last one because the government had to boost economy after world war ll
I believe the answer is <span> rock festivals that became popular toward the end of the decade..
The rock festivals is the equivalent of the tech crunch disrup in tech field. In the rock festival, artists with various style, instruments, and social group could come and express their artistic identity.</span>
