Answer:
A "small mountain stream" will have a greater competence and a lower capacity than the "Mississippi River".
Explanation:
- Streams flowing down a mountain tend to have more kinetic energy and momentum than the rivers flowing through plains.
- This increases their competence but at the same time, drains their capacity to convert themselves into larger streams.
- Most of the Mississippi River's course happens to pass through plains.
- That is why the Mississippi River has less competence yet more capacity than a "small mountain stream".