Advertisements
Advertisements
Question
Define pollution. “Industries are pouring poison in water” - Explain
Advertisements
Solution
Definition : “Substances present in the air / water / soil produced by the activity of mankind in concentration sufficient to cause harmful effect to his health, vegetables, property or to interfere with the enjoyment of his property is called as pollution”.
(1) Most of the Indian rivers and fresh water streams are seriously polluted by industrial wastes and effluents. Such pollutants come along waste waters of different industries such as petrochemical complexes; fertilizer factories; oil refineries; pulp, paper, textile, sugar and steel mills, tanneries, distillaries, coal washeries, synthetic material plant for drugs, fibres, rubber, plastic etc.
(2) In India all the 14 rivers have become polluted. Some most polluted rivers in Maharashtra like Mula-Maratha in Pune, Panchganga in Kolhapur, Patalaganaga in Panvel are heavily polluted having a variety of industrial and petrochemical wastes. The river Ganga from Hardwar and Kolkata is regarded is one uneding sewer which is fit only to carry urban liquid wastes, half burnt dead bodies, pesticides and insecticides.
APPEARS IN
RELATED QUESTIONS
Thermal power plants give out a lot of ______ waste water.
List the cause of water pollution.
Name two heavy metals from industries that pollute water.
What are some solutions to toxic dumping in our oceans?
Name any two water pollutants that are toxic for plants and animals.
Microplastics can be found in almost every freshwater source.
How do plastic sheets affect the soil?
Phosphate containing fertilisers cause water pollution. Addition of such compounds in water bodies causes:
(i) enhanced growth of algae.
(ii) decrease in amount of dissolved oxygen in water.
(iii) deposition of calcium phosphate.
(iv) increase in fish population.
Give two examples of water pollutants.
Liquid kitchen waste alone constitutes the sewage.
