Because of Biochemical Oxygen Demand (BOD), Dissolved Oxygen (DO) of a water body:जैव-रासायनिक ऑक्सीजन माँग (BOD) के कारण किसी जल निकाय की घुलित ऑक्सीजन (DO):
Pick an option to check yourself, or open the answer below.
Show answer & explanation
Correct answer: B. Decreasesघटती है
Explanation
BOD is the oxygen used by micro-organisms to decompose organic matter. The more organic pollution, the more oxygen is consumed, so the DO of the water decreases; high BOD therefore means low DO.BOD वह ऑक्सीजन है जिसे सूक्ष्मजीव कार्बनिक पदार्थ के अपघटन में उपयोग करते हैं। जितना अधिक कार्बनिक प्रदूषण, उतनी अधिक ऑक्सीजन की खपत, अतः जल की DO घटती है; अर्थात् उच्च BOD का अर्थ निम्न DO है।More People, Development and Environment questions
- Which of the following are true about pure rain water? A. It is naturally acidic B. It is naturally basic C. It is neutral (neither acidic…
- In which of the following steps of hydrological cycle water is purified?
- The scale, which not only measures the intensity of earthquake but also its impact on people, is known as
- Match the LIST-I with LIST-IILIST-I (Disinfectant byproducts (DBPs) of Chlorine) LIST-II (Chemical Composition) A. Dibromochloromethane I.…
- Which of the following are true about moderator used in nuclear reactors? A. Moderators slow down neutrons to sustain the chain reaction B.…
- What is the correct sequence, from initial to final, of blue baby disease, methemoglobinemia, in human infants? A. Conversion of nitrate io…