Advertisements
Advertisements
प्रश्न
Study the picture given below and answer the following questions :
Water pollution
Advertisements
उत्तर
Water pollution
(ii) Name one pollutant that causes the above the pollution.
APPEARS IN
संबंधित प्रश्न
Do you know of any activity which may be polluting this water source?
Study the picture given below and answer the following questions :
State one measure to control this pollution.
Answer the following question in one or two paragraphs
What are the major causes of water pollution?
We should keep the tap open throughout while washing utensils.
We should save water.
A pond contains clean water. Which of the following activities will produce least pollution of water?
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.
Mark the example which is not correctly matched?
Thermal power plants give out a lot of hot waste water.
Hot water discharged into water bodies hardly affects the fish and other aquatic life.
