Cartilage is present in the joints of our body which helps in their smooth movement

cbse
cbse-class-8-science
friction

#1

Cartilage is present in the joints of our body which helps in their smooth movement. With advancing age, this cartilage wears off. How would this affect the movement of joints?
Answer:
The wearing off of a cartilage will increase the friction. As a result the movement of joints will become difficult which may lead to joint pains.