Question

In general, streams closer to their source have ____________ than streams nearer their mouths?

1) a higher velocity
2) a lower velocity
3) the same velocity
4) a variable velocity

Answer 1

Streams closer to their source have a higher velocity than streams nearer their mouths.

Step-by-step explanation:

The correct answer is 1) a higher velocity. In general, streams closer to their source have a higher velocity than streams nearer their mouths. This is because streams gain water and energy as they flow downstream, resulting in an increase in velocity. For example, a stream at its source may have a narrow channel and a steep slope, which causes the water to flow faster. As the stream moves downstream and the channel widens, the velocity decreases.