Question

Which of the following changes cannot be reversed? (i) Yarn to knitted sweater(ii) Dissolving salt in water(iii) Milk to Paneer(iv) Wet clothes to dry clothes(v) Cow dung to biogas 


(a) (i) and (iv)

(b) (ii) and (iii)

(c) (iii) and (v)

(d) (ii) and (v)

Other:​

Answer 1

Answer:   Almost 70% of bone is made up of bone mineral called hydroxyWhich of the following changes cannot be reversed? (i) Yarn to knitted sweater(ii) Dissolving salt in water(iii) Milk to Paneer(iv) Wet clothes to dry clothes(v) Cow dung to biogas  

apatite. Before the extracellular matrix is calcified, the tissue is called osteoid (bone-like) tissue. When the concentrations of calcium and phosphate ions rise high enough, they are deposited into the extracellular matrix, and the bone calcifies.

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Explanation:

Answer 2

Answer:

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Explanation:

(a) (i) and (iv)