<prompt> Translate the following text to SwahiliWhile nitrogen is an essential nutrient, its availability is naturally limited, making it an important factor in regulating the structure and functioning of both terrestrial and aquatic ecological systems.  <response>: Ingawa nitrojeni ni muhimu virutubisho, upatikanaji wake ni asili mdogo, na hivyo ni sababu muhimu katika kudhibiti muundo na utendaji wa wote ardhi na maji mifumo ya ikolojia. 