Which size of sponge can filter an entire residential pool in one day?
Correct answer: C. Basketball-sized
- A. Tennis ball-sized
- B. Ladle-sized
- C. Basketball-sized
- D. Hockey ball-sized
- E. Teaspoon-sized
Explanation
The correct answer is Option C: Basketball-sized. This size of sponge provides the necessary surface area and volume to handle the filtration of a large body of water, such as a residential pool, in a single day. Smaller sponges, like those the size of a tennis ball, ladle, hockey ball, or teaspoon, do not have sufficient capacity to filter such a large volume effectively within 24 hours.
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