United states pharmacopeia was establish in 1820
Scarcity of resources. The European countries and Japan didn't have all the resources they needed in order to keep up industrialization and a few other reasons. They resorted to taking over other lands in order the "cheaply" obtain the resources.
By answering questions we picked just for you:How did the end of wwii set the stage for the cold war?
People 18 to 20 years old, regardless of property ownership
The answer is asexually.
The reason why plants that reproduce asexually than plants that reproduce sexually is because in asexual reproduction only one parent is needed, so there is no need for pollination and it is time and energy efficient. That means that farmers can grow large quantities for less time.