Which cycle is kn

Nitrogen cycle is called a perfect cycle in the biosphere because it keeps or maintains the overall amount of nitrogen constant in the atmosphere, soil and water decay causes, Nitrogen cycle depends upon different kinds of bacteria, the nitrifiers, the denitrifiers, and the nitrogen fixers. There is a regular circulation of nitrogen through the air, soil, plants and animals through nitrogen cycle.

OR

Malaria is caused by Plasmodium which is carried by the bite of female Anopheles mosquito. So, it is not spread by the diseased patient.