Mountains are rich in natural resources, but they also block movement and trade and isolate regions and people.
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:
Which of the following countries has the lowest arithmetic density?
Canada.
<em>Arithmetic density means the number of inhabitants per unit of measurement. </em>
The lowest arithmetic density is in Canada because:
- <em>it has large areas of boreal forest (conifers).
</em>
- <em>there are very low temperatures and an unfavorable climate is present (especially in the northern part of Canada).</em>
There are several factors that influence how each of us consumes energy. It is close to impossible to ask every person in the world, every family or even all countries to consume a specific amount of energy per day just for us to measure if everyone received an equal share. For me, energy consumption is evenly distributed if the supply meets the demand. So long as no country is suffering from darkness or there is no household without electricity, then energy is properly distributed.
