Deep water runs slow. Explain.

Explanation

To explain why deep water runs slow, we can analyze the situation using the principle of conservation of mass, specifically the equation of continuity in fluid dynamics.

### Step-by-Step Solution:

1. **Understanding the Equation of Continuity**:
The equation of continuity states that the product of the cross-sectional area (A) and the velocity (v) of a fluid must remain constant along a streamline. Mathematically, it can be expressed as:
\[
A_1 v_1 = A_2 v_2
...