The correct answer is D. Air moving along lines of constant longitude
Explanation:
In geography, the word meridian refers to an imaginary line that connects the North pole and the South pole, this includes the main meridian called Prime Meridian as well as multiple longitude lines that determine East and West.
On the other hand, the meridional circulation refers to a natural phenomenon in which air and air masses move from North to South and vice-versa following longitude lines or the imaginary lines that divide the planet vertically. Additionally, the meridional circulation affects climate especially in terms of extreme weather. According to this, the meridional circulation means "Air moving along lines of constant longitude".
Answer: Canada follows a parliamentary system while the US follows a presidential one.
Explanation:
In fact, since the Moon is constantly rotating on it's own axis, there is no area of the planetoid which is permanent darkness, and the far side of the Moon is only completely devoid of sunlight during a Full Moon - when the Sun is facing the Moon with the Earth in between.
Answer:
The answer is A. 75 N latitude and 40 W longitude.
Hope this helps! Might be wrong!
Explanation: