Answer:
Changes in the pressure create the flow of the air to move up and down in the ear and thus create popping sound.
Explanation:
- The ear-popping is caused by the phenomenon of the opening of the Eustachian tube when one swallows and it might be automatically when you blow our nose or are setting in an airplane and this sound is created when the air enters the middle ear through the tube.
Answer:
Child labour started when population increased. as a result the wants/demands of people are also increasing.so to accomplish the rising wants child labour is rising too.
Explanation:
If from the US asia is the continent that makes the most shoes for us
The correct order is Ns, As, Cs, Ci .
<h3>What do you mean by high altitude?</h3>
The distance above sea level is known as altitude, just like elevation. If an area extends at least 2,400 meters into the atmosphere, it is frequently referred to as being "high-altitude."
Mount Everest, which is located in the Himalayan mountain range on the border between Nepal and Tibet in China, is the highest point on Earth. 8,850 meters is how high Mount Everest is.
The highest city on Earth is El Alto, which is located in Bolivia. The average elevation of the 1.2 million population is 4,150 meters above sea level.
Air pressure decreases as altitude increases. In other words, low air pressure indicates a high apparent height.
Two things account for this. The primary cause is gravity. Density is the second justification.
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