Question

1) A person lives in a hilly area. The drinking water and food are grown in this area are poor in a mineral B. The deficiency of B in the body causes an abnormality of glands leading to a disease R. The disease R, however, does not occur in the people living in coastal areas.
(a) What is the name of the gland?
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(b) What is disease R?
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(c) What is the name of mineral B?
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(d) Why does disease R not occur in coastal areas?
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Answer 1

Answer:

a) Gland name is thyroid gland

b) disease R is goiter

c) mineral is iodine

d) because in coastal region rich in salt quantity so iodine is present in the required quantity so it not occur

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Answer 2

Answer:

the name of the gland is thyroid gland , Goitre is the disease R , the mineral B is iodine, because in contains iodine