Answer:
Disease spread can affect air travel really badly because it can be so easy for anyone to get infected with how crowded airports can be. This usually results in extra safety steps taken up to cancelled flights due to closed borders. A popular example of this is the current pandemic crisis.
Explanation:
Answer:
D
Explanation:
because the sun is energy
Heat and light (campfire), chemical ( beans as food), and kinetic (you hiking).
Coal from swamp plants that formed millions of years ago.
The cell grows,then separates,then prepares for mitosis
