A. Their diet and drinking water are deficient in iodine
B. Of low atmospheric pressure there
C. Of non-availability of sufficient amount of oxygen
D. Of low temperature
Answer
A
Submitted by: Toheed Ahmed
A. Their diet and drinking water are deficient in iodine
B. Of low atmospheric pressure there
C. Of non-availability of sufficient amount of oxygen
D. Of low temperature
Submitted by: Toheed Ahmed