In what way were the California missions self-sufficient?

According to documents in wiesner et al., why has access to water been such an important factor in the rise of complex societies? how did ancient societies address the problems associated with harnessing these powerful resources? how have historians assessed and addressed this issue? cite the appropriate documents relevant to the response.

Identify one specific example of how the enlightenment characterized a change in economic thought from the past

Tension between the british and boers was caused primarily by what things?