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.
According to the Sea Turtle Conservancy, sea turtles can hold their breath for much longer periods of time. A sea turtle that is not engaged in strenuous activity is able to hold its breath underwater for anywhere from 4 to 7 hours. However, when a sea turtle is hibernating, it may stay underwater for several months at a time. Turtles are able to stay underwater for long periods because of their ability to metabolize oxygen at a very low rate.