(3) 3. A certain type of amoeba, Sarcodina, moves at a speed of about 3,0 microns
per second (a micron is 1000th of a millimetre).
What will be the speed (in millimetres per second) of Sarcodina when
expressed in scientific notation?

d. millimeters per hour.

step-by-step explanation:

we are given that,

carlo used a rain gauge to measure the amount of water his lawn is receiving from the sprinklers.

since, according to the options, we see that,

water cannot be measured by 'miles per hour', 'meters per second' and 'grams per seconds'.

we get that, the water can be measured by 'millimeters per hour'.

hence, the appropriate rate for describing the amount of water is 'millimeters per hour'.