Question

For question number 11 and 12 statements are given one labelled Assertion (A) and other labelled

reason (R). Select the correct answer to these questions from the cods i, ii, iii and iv as given below:

(i) Both A and R is true and R is correct explained of the assertion.

(ii) Both A and R is true and R is not correct explanation of the assertion.

(iii) A is true but R is false.

(iv) A is false butR is true.

11. Assertion: - It is observed that sometimes the tadpoles do not grow into adult frog in some village

ponds.

Reason: This happens when the pond water does not contain sufficient amount of sodium need to

make thyroxine hormone.

12. Assertion: - The voice of a child generally has a lower pitch than that of an adult.

Reason: As one goes through puberty, the Larynx becomes bigger and the vocal cords get lengthened

as well as thickened​

Answer 1

Answer:

Both A and R is true and R is not correct explanation of the assertion.

Explanation: