I think its d all of the above
True. Radioactive wastes can decay in days or it can take up to millions of years.
Most of the Southern Europe's terrain is moutaineous.
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:
Answered
Explanation:
13) Dipole bonds
A dipole bond is formed due to shift in electric charge.It is the weakest bond.Dipole bond has a strength of 5 KJ to 20 KJ per mole.
14) Judicial branch.
Note: The legislative branch creates statutory laws. The executive branch enforces laws.The judicial branch interprets laws.
15) Positive feedback.
Positive feedback enhances or amplifies or reinforces a change.