What technologies did humans develop which allowed them to adapt to new environments

What is an example of a secondary source?

Review the image below. which answer best describes how the artist depicts the people in this poster? the woman is not prepared while her husband is in control. the woman is upset about leaving her children, but her children are happy. the woman is prepared to leave, but her husband is worried. the woman, her husband, and her children are all angry about the situation.

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?