Question

Q10) What impact does the decrease in atmospheric pressure at high
altitudes have on our lives? Explain with three examples.​

Answer 1

• when we go to higher altitudes people carry oxygen cylinders because when pressure decreases the availability of Oxygen gas decreases therefore there will be problem for respiration.
• when going to higher altitudes there will be nose bleeding because when going to higher altitude atmospheric pressure decreases and the it will become more than the blood pressure in our body and the blood pressure in the body forces the blood to move out which causes the nose bleeding.
• when going to higher altitude pressure decreases therefore temperature also decreases and it will become difficult to cook food.

Explanation:

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Answer 2

Answer:

Ans: At high altitudes like mountains or high buildings, atmospheric pressure decreases as well as effect of gravity decreases by moving farther than earth's centre.

In the outer atmosphere, there are fewer overlying air molecules pressing down from above, so they're not increasing the pressure as much.

•High altitude = 1,500–3,500 metres (4,900–11,500 ft)

•Very high altitude = 3,500–5,500 metres (11,500–18,000 ft)

•Extreme altitude = above 5,500 metres (18,000 ft)

Ex (1) in order to fly at such high altitudes, the planes must keep an artificially high cabin pressure so that we have enough oxygen to breathe.

Ex. (2) Research indicates elevated risk of permanent brain damage in people climbing to above 5,500 m (18,045 ft).

Ex. (3) At altitudes above 7,500 m (24,600 ft, 383 millibars of atmospheric pressure), sleeping becomes very difficult, digesting food is near-impossible, and the risk of HAPE or HACE increases greatly.

Hence, the outcome is living on high altitudes cause many serious problems and very difficult to stay.

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