Why do navigators measure speed in knots? it is a traditional nautical term. knots are related to ocean currents. knots are related to the global coordinate system.

The correct answer would be option first - It is a traditional nautical term.

Explanation:

In early 17th century sailors used to measure the speed of the ship by the device called a common log. This device was a coil of rope with several knots placed uniformally to it, attached to a slice of pie like shaped piece of wood. It was allowed to flow freely in the sea for specific time and pulled back after particular time.

Thus, the correct answer would be option first It is a traditional nautical term.

desert perennials often survive by remaining dormant during dry periods of the year, then springing to life when water becomes available. most annual desert plants germinate only after heavy seasonal rain, then complete their reproductive cycle very quickly.

yes it is weird but true