Give reasons for the following:
It is difficult to walk on well polished floor or ice.

Explanation

To understand why it is difficult to walk on a well-polished floor or ice, we need to consider the concept of friction and how it affects our ability to walk. Here’s a step-by-step explanation:

### Step 1: Understanding Friction
Friction is the force that opposes the motion of an object when it is in contact with another surface. It is caused by the irregularities in the surfaces that are in contact.

### Step 2: Comparing Surfaces
When we walk on a rough surface, like a concrete floor, the irregularities in the surface create more friction. This friction provides the necessary grip that helps us push off the ground and move forward.

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