What removes extra water and waste materials from our body?

The kidneys are the primary organs responsible for removing extra water and waste materials from the body. They filter blood, reabsorb essential substances, and excrete waste products and excess water as urine. Additionally, the urinary system, which includes the bladder and urethra, plays a crucial role in storing and expelling urine. Other organs, like the skin and lungs, also help eliminate waste through sweat and exhalation, respectively.