In a scientific investigation of lakes the depth of a lake is most likely to be measured in

Either feet or meters, but each country/state is different.

In a scientific investigation of lakes the depth of a lake is most likely to be measured in meters.

Because the depth is the distance of an element from a horizontal reference plane and The unit of measure for distance according to the international system is the meter.

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.