The best answer from the ones mentioned is the last one: encomienda.
Encomienda is a system where the stronger partner provides protection to the weaker one in exchange for goods and services.
Answer:
This made double-cropping possible in some areas, and in some places, even triple-cropping became possible ... the hardiness and productivity of various varieties of rice were and are in large part responsible for the density of population in South, Southeast, and East Asia.
Answer:
True
Explanation:
Bombing of war supporting industries and transportation system immobilizes the enemies and wars can be won through this approach. This is supported by the comprehensive doctrine of air warfare.
Answer:
The Peace of Westphalia laid the foundations of modern Europe by acknowledging Europe as a collection of independent states as well as leading to a rise of nationalism among those states, by ending religious wars, and by introducing a new way of peace negotiation.
Explanation:
I'm not sure
Drought is a major driver of impacts to grassland and prairie ecosystems, and is likely to lead to increased wildfires and loss of wetland habitats – such as prairie potholes that are critical habitat for migratory bird species – as well as species migration and habitat shifts
