Answer:
Is B, it is B because you don't need arrows on it.
They do this so that when you drink it or use it the contaminates that used to be in it dont make you sick
Density= mass/volume
= 100/25
density = 4g/ml
d. exothermic; leaving
- Exothermic reaction is a reaction that produces heat in the reaction whereas the endothermic reaction is a reaction in which heat is required to be given in the reaction to produce product.
- Fire is an exothermic reaction.
- A fire is produced due to oxidation of the fuel in the form of liquid or gas.
- A fire is an example of combustion.
- In fire both heat and light are left from fire due to the oxidation of fuel.
Hence, option d. exothermic; leaving is the correct option.
Learn more about fire:
brainly.com/question/12761984