Which of the following statements is correct?

Options

A. Heat moves from colder regions to hotter regions.
B. Woollen clothes block the flow of heat from our body to the surroundings.
C. Woollen clothes block the flow of heat from the surroundings to our body.
D. Blocking the flow of heat with layers of insulating material cannot prevent ice from melting.

Explanation

To determine which statement is correct, let's analyze each option step by step.

### Step 1: Analyze the First Statement
**Statement 1:** "Heat moves from colder region to hotter region."

- **Explanation:** According to the laws of thermodynamics, heat naturally flows from a region of higher temperature to a region of lower temperature. Therefore, this statement is incorrect.

### Step 2: Analyze the Second Statement
**Statement 2:** "Woolen clothes block the flow of heat from our body to surroundings."

- **Explanation:** Woolen clothes are designed to trap air and provide insulation. They prevent the heat from our body (which is warmer) from escaping to the colder surroundings. This statement is correct.

### Step 3: Analyze the Third Statement
**Statement 3:** "Woolen clothes block the flow of heat from the surrounding to our body."

- **Explanation:** This statement is misleading. Woolen clothes do not block heat from the surroundings to our body; rather, they help retain the heat generated by our body. Therefore, this statement is incorrect.

### Step 4: Analyze the Fourth Statement
**Statement 4:** "Blocking the flow of heat with layers of insulating material cannot prevent ice from melting."

- **Explanation:** Insulating materials can slow down the transfer of heat. If we insulate ice properly, it can indeed prevent heat from reaching the ice, thus slowing down or preventing it from melting. Therefore, this statement is also incorrect.

### Conclusion
After analyzing all four statements, we find that the correct statement is:

**Correct Statement:** "Woolen clothes block the flow of heat from our body to surroundings."