Question

Which one of the following is nearest to the opposite in meaning to the word given in capitals? POROUS

• A. impermeable
• B. permeable
• C. penetrable
• D. concentrate

Hint:

Think of common science roots: Pores are small openings. An item with pores is porous or permeable. Adding the negative prefix im- to permeable yields impermeable, which means completely sealed or waterproof.

Answer 1

The Correct Option is A

Concept: This question focuses on material properties concerning fluid dynamics. A substance either allows passages through its structural frame or completely restricts them.

Step 1: Define the target word. * POROUS: Having minute spaces or holes through which liquid or air may pass. Examples include sponges, pumice stones, or unglazed earthenware.

Step 2: Characterize each option. * impermeable: Not allowing fluid or gas to pass through. * permeable: Allowing liquids or gases to pass through it (Synonym). * penetable: Capable of being pierced, entered, or passed through (Synonym). * concentrate: To gather together or intensify a substance (Unrelated action).

Step 3: Establish the antonym relationship. * Because porous objects welcome substance infiltration due to their structural gaps, materials labeled impermeable completely deny fluid passage, making them the true semantic opposite.