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.
WHAT IS A WHALEâS SPOUT? Is a whaleâs a fountain of water? Both whales and people use lungs and noses to breathe air. But because whales live in the water their noses and lungs work differently from yours. Whales donât breathe as often as you do; they breathe only when they are on the surface of the ocean.