Astronomers can often identify a binary system that includes only one visible star by observing the effects on the dim star's what on its brighter companion, causing a 'wobble'.
Answer:
2.16 km. Extra thicc
Explanation:
Searched it up on google -3-
Considering the available options, the term that describes airflow from west to east is known as <u>Zonal Flow.</u>
<h3>What is Zonal Flow?</h3>
Zonal Flow is a term used to describe wind or airflow from the west-east direction.
The Zonal Flow can also flow along the Latitudinal lines or latitudinal circles.
Zonal flow is a term commonly used in atmospheric and geographical sciences, and it brings a temperature contrast along the Earth's longitude.
Hence, in this case, it is concluded that the correct answer is option A. "<u>Zonal Flow."</u>
Learn more about Airflows here: brainly.com/question/441281
Nation states are difficult to create because of colonies ((tell me if u need to know why because I can help with that))