What do CFCs stand for? Name some devices where CFCs are used. Why CFCs are considered as pollutants?

Explanation

### Step-by-Step Solution:

**Step 1: What do CFCs stand for?**
CFCs stand for Chlorofluorocarbons. This is the full name of the chemical substance commonly referred to as CFCs.

**Step 2: Name some devices where CFCs are used.**
CFCs are primarily used in devices such as refrigerators and air conditioners. They act as cooling agents in these appliances, helping to maintain low temperatures.

...