Answer: I think it is A(Lines of Lattitude). I hope this helps!
Explanation: it is because the latitudinal lines are horizontal and they run parallel to the earth(equator)
The reason is because of time zones. Since they are on the opposite side of the world, they also have opposite time. 10 AM in Washington DC is 8:30 PM in Bengaluru. You get your time zone based on your latitude and longitude.
Answer: architecture, and good construction engineers.
Explanation: hope this will help you
The answer is true. I am not great at geography but have passed booth semesters.