Why are there Dry and Liquid Measuring Cups? What's the difference?

Product Description

I am going out on a limb here and estimating that at least 4 out of every 10 homes now only has 1 set of measuring cups.  And this one set is used to measure

How Many Ounces in a Cup: Measuring Liquid and Dry Ingredients

When is a Cup Not a Cup? - Learning to Measure with Rhonda Sue's

Dry versus Liquid Measuring Cups - Crazy for Crust

How Many Ounces in a Cup (Liquid and Dry Measurements)

Weighing Liquid vs Dry Measuring Cups

Dry versus Liquid Measuring Cups - Crazy for Crust

Dry versus Liquid Measuring Cups

What's the Difference Between Dry and Liquid Measurements

Liquid vs Dry Measuring Cups: What's The Difference? %%sep

Liquid vs. Dry Measurements: Why It Matters

Liquid Measurement Conversion Chart for Cooking

What's the Difference Between Dry and Liquid Measurements?

How to Measure Ingredients for Better Baking