SortStack #3156 — 2035-01-29

By size · Order from shortest to longest.

1. A single poppy seed 1.3 mm

   It takes roughly 3,000 poppy seeds to make a single gram, which is why they scatter so easily off a bagel.

2. A skateboard 79 cm

   The kicktail that makes tricks possible was a 1970s accident that turned skating into an aerial sport.

3. Mount Everest 8.8 km

   Its summit is made of marine limestone, lifted from an ancient seabed, so the top of the world was once underwater.

4. The cruising altitude of Concorde 18 km

   Concorde flew so high that passengers could see the curvature of the Earth and the dark of space above.

5. New Zealand's South Island (length) 840 km

   It is home to fewer than two million people but more than ten times as many sheep.

6. The Amazon River (length) 6.4K km

   It discharges so much water that it freshens the Atlantic Ocean more than 100 kilometres out from its mouth.

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