Q. Consider the following situations:

1. A wide camel's foot prevents it from sinking in desert sand.
2. A tractor moves easily on muddy fields compared to a car.
3. A person wearing high-heeled shoes sinks deeper into soft ground than one wearing flat shoes.

Which of the above illustrate the role of pressure distribution?
Answer: 1, 2 and 3
Notes: All three situations demonstrate pressure distribution: camel's feet (1) spread weight and reduce pressure; tractor tyres (2) have broad surfaces to lower ground pressure in mud; high heels (3) concentrate force, increasing pressure, and thus sink. Each case exemplifies how distributing force over a larger or smaller area affects sinking or support.