Answer:
The BOD5 for this sample is 5 mg/L
Explanation:
The BOD5 takes into consideration the difference between the initial DO and the final DO divided by the fraction of the sample tested in a 300 mL BOD flask. The problem states that the sample was directly placed in a BOD bottle so we assume that the volume used was 300 mL of the water sample. The fraction of water is 1 (300/300).

BOD5 = (10-5)/1
BOD 5 = 5 mg/L
Answer:
secularism means all different kinds of religions in democracy country
Explanation:
heyyy, from venezuela. how are you?
When a product is elastic, a change in price quickly results in a change in the quantity demanded. When a good is inelastic, there is little change in the quantity of demand even with the change of the good's price. ... If the market price goes up, firms are likely to increase the number of goods they are willing to sell.
Answer:
A. is the answer
Explanation:
The hammer in the first position is raised and ready to hit the nail on the head. This is called potential energy. It has a lot of energy stored inside of it but it won't get used until we allow it to hit the nail. That is why it is not kinetic energy but only potential. Think of it just as when we say something has the potential to do something.