Q1.What is identified as the primary cause of water pollution by industries?

Q2.Which of the following industries is NOT listed as a major contributor to water pollution in the given text?

Q3.Which heavy metals are specifically mentioned as being discharged into water bodies by polluting industries?

Q4.Which of the following is considered a major solid waste in India?

Q5.Thermal pollution of water is primarily caused by which action?

Q6.Besides irritation and anger, which physiological effects are attributed to noise pollution?

Q7.How much freshwater is polluted by every litre of wastewater discharged by industry?

Q8.Which of the following processes is part of the primary treatment of industrial effluents by mechanical means?

Q9.The secondary treatment of industrial effluents primarily involves which type of process?

Q10.What is a key characteristic of the tertiary treatment of wastewater?