Answer:
I would believe the mesosphere would be the most difficult layer to breathe. Troposphere is where we are, ov we can breathe here, stratosphere would be hard to breath in as well
ATP is adenosine triphosphate, it is like a fully charged battery in a cell, ADP is basically ATP that has been drained of its energy from a chemical reaction. It is like a dead battery that can be recharged later ;)
0.388 Hope this helped let me know if it was wrong :)
Typhoons tend to pass east to west across the Philippine archipelago. Affecting mostly the northern most group of islands (Leyte to Luzon)
The answe is the 4th choice