Answer:
due to ageing the physical senses and properties like eye's power become weak and slowly it starts to work weak in old people.
Nuclear fusion is the answer of this question
The answer is probably a reflex.
Answer:
(based of what I would think )
Explanation:
If we didn't have decomposers, the waste left from the food we eat and what the wolves and stuff eat would grow into a problem, we would have ( i think) a mess or something
( more people can answer this better then me)