Interactions between ideas, environment and people.
Answer:
The increase in settlements in the West caused the frontier line to disappear.
Explanation:
Because they had all they needed where they where at
Papaver means that it is a member of the Poppy genus when translated to English, while somniferum means "sleep-inducing". When translated from Latin to English, it basically means "the poppy that brings you sleep" or the "sleep inducing poppy", which is not that wrong considering that it is used to make opium.
It is B Population overcrowding Europe
