Answer:
It would be mP.
Explanation:
In winter an artic air mass (very cold and dry air) can move over the ocean, picking up some warmth and moisture from the warmer ocean and becoming a maritime polar air mass (mP)- one that is still fairly cold but contains moisture (I hope this helps you!)
They all contain a gravitational pull that allows them to stay together and to keep objects within orbit
Mesosphere is the layer after stratosphere, which is after troposphere, as seen from Earth in the direction of Space.
It starts at 60 km and ends at 120 km, after which comes the termosphere.
So we're looking for a line that's closest to 100 km, and this is the shortest line, A.
