What is the minimum distance (in metres) required to hear an echo
Answered 7 yr ago
bhavishya kumarCorrect Answer: 17The velocity of sound in dry air is approximately 343 m/s at a temperature of 25 °C. Therefore, the reflecting object must be more than 17.2m from the sound source for echo to be perceived by a person located at the source....Read more
Anaemia is caused because of deficiency of which of the following? िनिलखत मसेिकस की कमी के कारण एनीिमया होती है? Options: 1) Cobalt कोबा 2) Iron लोहा 3) Sodium सोिडयम 4) Calcium कै यम
Answered 7 yr agoCorrect Answer: IronVitamin B-12 deficiency can cause these and other health problems before it leads to anemia. Scurvy. Vitamin C deficiency can lead to scurvy...Read more
Haemoglobin is an important component of red blood cells
Answered 7 yr agoCorrect Answer: red blood cellsHemoglobin (American) or haemoglobin (British); abbreviated Hb or Hgb, is the iron-containing ...Read more