Explain why we are able to suck liquids through straws and fill liquids in injections and droppers?

Explanation

To explain why we are able to suck liquids through straws and fill liquids in injections and droppers, we can break down the explanation into several steps:

### Step-by-Step Solution:

1. **Understanding Atmospheric Pressure**:
- The first step is to recognize that atmospheric pressure plays a crucial role in this process. Atmospheric pressure is the force exerted by the weight of air in the atmosphere on the surface of liquids.

2. **Creating a Vacuum**:
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