Answer:
This question appear incomplete
Explanation:
This question appear incomplete. However, fuel is formed through a natural phenomenon involving the conversion of large amount dead and decayed organisms (usually algae and zooplanktons) to combustible fuel through exposure to relatively high temperature and pressure (over millions of years) in the earth's crust. Thus, since this involves a sort of absorption of heat energy (from the earth's crust), it can be referred to be an endothermic reaction.
Answer:
Spraying perfume in one corner of the room and the smell travels to the other side of the room
Explanation:
The answer for this question is: Atoms
I think it would be Bromine and Mercury, hope that helps
