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Underwater divers wear fin-like flippers...

Underwater divers wear fin-like flippers on their feet to

A

swim easily in water

B

look like a fish.

C

walk on water surface.

D

walk over the bottom of the sea (sea bed).

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding the Purpose of Flippers**: Underwater divers wear fin-like flippers on their feet primarily to enhance their swimming ability. 2. **Streamlining the Body**: The flippers help to streamline the diver's body. A streamlined shape reduces the drag caused by water, allowing the diver to move more efficiently. 3. **Reducing Drag**: When divers wear flippers, the drag (the resistance faced while moving through water) is minimized. This means that the diver can swim faster and with less effort. 4. **Displacing Water**: Flippers also help in displacing water in various directions. This displacement allows the diver to push against the water more effectively, aiding in propulsion. 5. **Less Muscle Effort**: With the help of flippers, divers exert less effort from their muscles while swimming. This makes it easier for them to swim quickly and efficiently. 6. **Comparison with Fish**: Just like fish use their fins to move through water by displacing it, divers use flippers for similar reasons. The design of flippers mimics the function of fish fins. 7. **Conclusion**: Therefore, the main reason underwater divers wear flippers is to swim easily and quickly by reducing drag and the effort required from their muscles. ---
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