This is the answer for you're topic and also I got this from my old computer history so yeah.
Answer:
the chemicals had to be applied to the plate in the dark.
the photograph had to be made and developed while the chemicals were still wet
<span>The American colonies were settled by diverse groups of people.
and many of the New England colonies were settled for religious reasons are correct</span>
if you're asking what hindered the US from winning in Vietnam it was cause of multiple factors
first one and probably the biggest is that the war was unpopular back in the US most of the population found it to be a pointless war
second reason would be that the Soviets and us Chinese were training equipping and supporting the Viet Kong
third reason would be that the Viet Kong were excellent guerrilla fighters and knew the land better than the American GIs
