Color change is the answer because that is a physical change
Answer:
Gravitational Force
Explanation:
When a phone is dropped, gravity is pulling it down towards the earths core, so in return the phone will be smashed when it hits the ground.
Forgetting
is the apparent loss or modification of information already encoded and
stored in an individual's long term memory. It is a spontaneous or
gradual process in which old memories are unable to be recalled from
memory storage. Forgetting also helps to reconcile the storage of new
information with old knowledge.
Hope this helps :p
The answer is D BECAUSE WITHOUT ENEGY THE BALANCE WILL NOT BE OK SO IT CAN COMBUST