Steering is simply defined as a mechanism in a vehicle or vessel that makes it possible to steer in different directions. The preferred steering method that will help reduce the possibility of losing control is the push pull method. It is also called hand-to-hand. In this method, each hand remains on its respective wheel side. Whenever you are turning left; your left hand begins by pulling in a downward motion from the 10 o'clock position to the 9 o'clock position. <span />
Answer: In order to compensate for the low partial pressure of oxygen at altitude, the human body undergoes a number of physiological changes. A vital component in this process is the increase in the concentration of circulating haemoglobin. The role of HIF‐1α, erythropoietin and red blood cells in this acclimatisation process is described, together with the fall in plasma volume that increases the concentration of haemoglobin in the early stages of hypoxic exposure.
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