They did the negative deed in Beijing.
Answer:
During the period 1870 to 1900, there were many inventions to increase the urban growth. <em>Some of them are an incandescent lamp, tinfoil phonograph, box telephone etc.
</em>
<u>Explanation:
</u>
The incandescent lamp was invented by Edison, <em>An American businessman and inventor Thomas Alva Edison invented incandescent lamp. </em>This invention didn’t depend on firework for lighting this lamp was used more in factories, homes and offices.
This lamp consists filament to which temperature is increased with the help of electric current this helps to produce a lighting effect. The filament is made up of tungsten and protected it from oxidation by covering glass which is filled with inert gas.
French Revolution. Robespierre was in charge and was leading the poor to a victory against the aristocrats. Killing the king and his wife.
Economics is the study of how societies use scarce resources to produce valuable commodities and distribute them among different people
A bit more info: Behind this definition are two key ideas in economics: that goods are scarce and that society must use its resources efficiently.
