Hey there!!
Scientists are able to understand Earth's interior by studying seismic waves<span>. These are waves of energy that travel through Earth, and they move similarly to other types of waves, like sound waves, light waves, and water waves.</span>
Hope this helped and have a great day (:
One of them is Norway (385,155km²) ...
The subtropical jet streams formate from cool and warm air masses that meet near the equator (close to the 30* Latitude).