Primary productivity is not limited by
a.
the availability of sunlight
b.
time
c.
the availability of nutrients
d.
access to water

The correct answer is "B".

Primary productivity is the rate at which plants produce organic compounds in an ecosystem. The elements that serve as parameters, in other words, restraint the production of organic compounds are:

there is no universal method for handling incomplete data in a clinical trial. each trial has its own set of design and measurement characteristics. there is, however, a set of six principles that can be applied in a wide variety of settings.

there has only been 12 presidents. the 12th president is/was moon jae-in