Summarize Prince Henry the Navigator's influence on exploration

What problem does obeng say that we have in the 21st century? 2. obeng argues that the pace of change has eclipsed the pace of learning. do you agree or disagree? why? 3. what is "smart failure" according to obeng?

Which factor contributed to the rise of african empires such as ghana and mali?

Imagine you are driving down the highway and reading a sign that states save the planet don't litter which technique of policy enactment is being used