Because if you come across something surprising, it's best to know how and why that happened
Answer:
Burning of a candle
Explanation:
All of the other things cannot be undone. the burning of a candle can. Blow the candle out and you have undone a phisical change
I hope this answer helps you :)
Replicate/look exactly like their parent, since they all have the seems genes, and one parent.
Fish are a class of aquatic vertebrates. The combination of gills, fins and the fact that they live only in the water make fish different from all other animals.
