Quadrilaterals, diagonal of a quadrilateral, types of quadrilaterals, rectangle, square, parallelogram, rhombus, trapezium, regular trapezium, kite, angle sum of a quadrilateral and applying properties of quadrilaterals to solve problems.
Sperm whales make some of the longest dives achieved by mammals, with some lasting up to 90 minutes, while dolphins and other whales can stay underwater for 20 minutes. The longest time a human has held their breath for under water is 19 minutes â set by a Swiss freediver called Peter Colat.
A whale uses it s blowhole to breathe in air and when you see water spurting from a whales blowhole that s just the water vapour from the whales lungs and any water around the blow hole being blown into the air as it breaths out. 1  Actually whales don t breathe underwater. 2  They hold their breath underwater instead.