One microsecond is________ of a second.

Ecosystem is________

sqrt55 is________

Atomic clock have an accuracy of one second of one second in every__________ seconds.

How much longer then a microsecond is a millisecond ?

The vecs-t graph of a body is a shown in the figure The time for which the body is in motion is________ second

Are there more microseconds in a second than the number of seconds in a year ?