Sponge is to porous as rubber is to ____.

Given data

• Sponge is characterized by porosity.
• Rubber has a defining physical property too.

Concept/Approach

Match material to its most characteristic property.

Step-by-step reasoning
Sponge → porousRubber → ?Typical property of rubber = elastic

Verification/Alternative

Hard and brittle are opposite of rubber’s usual behavior; fibrous does not describe rubber.

Common pitfalls

Choosing a possible but non-defining property.

Final Answer
elastic