Well the trees are the fuel for a fire and the sun can start a wild fire so I would probably say the things on the ground but I’m not completely sure
It is when warm air rises then cools then drops then rises then cools then drops etc
Gravitation between two objects increases when the distance between them decreases.
When the mass of an object increases, its gravitational pull also increases.
I think is Asia, but I could be wrong
(but it probably is so yei)