Question

12. The joints of our bones wear off with ageing. Give reason​

Answer 1

joint movement becomes stiffer and less flexible because the amount of lubricating fluid inside your joints decreases and the cartilage becomes thinner.

Answer 2

Explanation:

As you age, joint movement becomes stiffer and less flexible because the amount of lubricating fluid inside your joints decreases and the cartilage becomes thinner.

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