The manifest destiny is when everyone moved west and kicked the Indians out
A feminist is a person who supports feminism
I believe the answer is Gold.
Gold was a very hot commodity at that time because before we use paper/digital money like today, Gold was made as material to make a type of money with more intrinsic value.
The abundance of this natural resources led to many European empire came and started their colonization in AFrica.
It had a very positive impact because the 1920's was when many new technologies were introduced, one example being the the assembly line, which made many industries more productive and profitable.
Hope that helps!
It is false, they cannot be applied on a national level, each state can apply their own policies/laws