The answer to your question is d
I believe it’s c: it has darkness and shading
Answer:
Economics is the study of how humans make decisions in the face of scarcity.
Explanation:
Answer:
The emergence of agriculture allowed humans to create permanent settlements with the hope of a stable food supply. ... Increasing temperatures opened the door for humans to learn how to cultivate wild plants, while new tools allowed humans to better manage crops and increase crop yields.
The correct answer is that rival alliances had promoted tension rather than security. England had decided to side with the Russians and France. This is because it was very scared that Germany had become too powerful. This fueled the fire and made the Germans more agitated. All of the nations saw alliances as a threat towards one another.