Answer:
Option D: nitrogen waste
Step-by-step explanation:
Excretion.
This is removal from of waste products of chemical reactions. It involves the eliminating excess water and salts taken in with our human diet and also spent hormones
Nitrogenous waste products are the human waste products which contain nitrogen and are poisonous to the body.
The kidneys is responsible for the remove of Nitrogenous waste, water, salts, toxins, hormones e. t. c. It is the are the main principle excretory organs. They maintain the constant concentration of materials in the body.