You would go upstream as in north if you would go down stream it would be south
Answer:
Corruption
Explanation:
An abundance of natural resources don't always equate to wealth. Japan for example has few natural resources but is high in human capital.
Countries with gold mines might not be the richest possibly because of corruption, exploitation, and conflict.
This video might be of some help to you: "Why Some Countries Are Poor and Others Rich"
False, the earths crust is thick solid rock.
Explanation:
Make an observation.
Ask a question.
Form a hypothesis, or testable explanation.
Make a prediction based on the hypothesis.
Test the prediction.
Iterate: use the results to make new hypotheses or predictions.