1. Why do mountaineers suffer nose bleeding at high altitudes?
2. Why a heavy truck is fitted with six to fourteen tyres?
3. Why do divers wear special suits before diving into deep sea?
Answers
Explanation:
1) Mountaineers suffer nose bleeding in higher altitudes as the atmospheric pressure is very low at heights due to which the pressure inside the body is not balanced with the atm pressure and is more than it. this is why the nerves inside the nose burst out. And the mountaineers suffer from nose bleeding
ANSWER: 1. Mountain climbers often get nosebleeds at high altitudes because as the amount of oxygen in the air decreases and the air becomes drier, blood vessels inside your nose can crack and bleed.
2. A heavy truck is fitted with six to fourteen tyres. These tyres increase the area of contact on which their weight acts and hence, reduce their pressure on the ground.
3. Pressure suits can help humans withstand different pressures by protecting us from the difference around us. ... Deep sea divers will have an atmospheric diving suit which block the heavy pressure of the water around them, and keep a decent pressure inside.
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