i hope this helps you
from google:
"The Earth gets hotter as one travels towards the core, known as the geothermal gradient. Geothermal gradient is the amount the Earth's temperature increases with depth, indicating heat flowing from the Earth's warm interior to its surface. On average, the temperature increases by about 25°C for every kilometer of depth"
So it can tell you what part of the world you are actually looking at
True, Venezuela sends the United States 352,278,000 barrels of oil per year
These look slightly different when you click on them, but the arrow does not look jumbled up or "squished", I'm going to say the arrow. It should have symmetry horizontally. I'm picking this based on how the pictures look online. Good luck with your work!
