They respond to danger by diving rather than flying, and are in any case much less wary than ducks. Extant species range in size from the least grebe, at 120 grams (4.3 oz) and 23.5 cm (9.3 inches), to the great grebe, at 1.7 kg (3.8 lbs) and 71 cm (28 inches).hey respond to danger by diving rather than flying, and are in any case much less wary than ducks. Extant species range in size from the least grebe, at 120 grams (4.3 oz) and 23.5 cm (9.3 inches), to the great grebe, at 1.7 kg (3.8 lbs) and 71 cm (28 inches).
Noun. 1. productivity-the quality of being productive or having the power to produce. productiveness. fruitfulness, fecundity-the quality of something that causes or assists healthy growth.
Productivity is simply the amount of output you get per unit of input. It is a way to compare the cost of something to its benefit. So if you have an input of 5 and output of 5, your productivity is lower than something with an input of 5 and an output of 10.Productivity is kind of like the miles per gallon on your car.o your coworker is actually more productive in terms of the amount of output the boss gets for a given level of input. This is surprisingly important to understand. If a worker needs to be let go, it makes sense lay you off even though you make 33% more widgets per hour than your coworker.