Answer:
nuclear weapons
Explanation:
The Manhattan Project was a research and development during WW11. It was led by the US with the help of Canada and the UK
this is not proportional s there isnt a relationship
Using fewer fossil fuels, such as gasoline for a car, reduces the emission of harmful pollutants into the air.
B a assassination took place in dallas, John F Kennedy was shot
I will recall the new president and protest for a new one.
hope this helped!
:d :)
