SortStack #2155 — 2032-05-03

By size · Order from shortest to longest.

1. A tennis ball 6.7 cm

   Tennis balls are pressurised with gas and slowly go flat, which is why fresh cans hiss when opened.

2. A Bengal tiger (body length) 2.1 m

   A tiger's roar can be heard up to three kilometres away and carries frequencies low enough to paralyse prey with fear.

3. Mount Fuji, Japan 3.8 km

   Though it looks serene, Fuji is an active volcano that last erupted in 1707, dusting distant Tokyo with ash.

4. Mont Blanc, the Alps 4.8 km

   Its summit is buried under permanent ice so thick that the official height changes slightly with the snow each year.

5. The Mariana Trench (depth) 11 km

   If Everest were dropped into it, the peak would still sit more than two kilometres below the surface.

6. The Mississippi River (length) 3.7K km

   A raindrop falling at its source takes about 90 days to drift all the way down to the Gulf of Mexico.

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