′Nitrogenous oxygen demand′ (NBOD) is oxygen needed to:
A. Convert ammonia to nitrate
B. Convert nitrogen dioxide to nitrogen trioxide
C. Denitrifying bacteria to grow
D. Oxidize organic matters
Answer:A
′Nitrogenous oxygen demand′ (NBOD) is oxygen needed to:
A. Convert ammonia to nitrate B. Convert nitrogen dioxide to nitrogen trioxide C. Denitrifying bacteria to grow D. Oxidize organic matters