निम्नलिखित में से कौन सा प्रदूषक मुख्य रूप से प्रशीतन (refrigeration) और एयर कंडीशनिंग उद्योगों से होने वाले उत्सर्जन से जुड़ा है?

If sewage water with a very high BOD is directly discharged into a river, the most immediate consequence would be:

Which combination of pollutants is primarily associated with raw, untreated domestic sewage discharge?

What is the primary ecological consequence of thermal pollution caused by discharging heated industrial effluents into natural water bodies?