Advertisements
Advertisements
प्रश्न
List the cause of water pollution.
Advertisements
उत्तर
Industrial effluents, mining wastes, sewage disposal and domestic wastes, agricultural wastes.
APPEARS IN
संबंधित प्रश्न
Clear, transparent water is always fit for drinking. Comment.
Study the picture given below and answer the following questions :
Name one pollutant that causes the above the pollution.
Answer the following question in one or two paragraphs
What are the major causes of water pollution?
Excessive use of chemical fertilizers depletes the soil and causes water pollution.
Read the paragraph and answer the questions following it.
| Water is essential for life. Without water there would be no life. We usually take water as granted for its purity, but we must ensure the quality of water. Pollution of water originates from human activities. Through different paths, pollution reaches to groundwater. Easily identified source or place of pollution is called as point source, e.g. municipal and industrial discharge pipes, where pollutants enter the water source. Non-point sources of pollution are those where a source of pollution cannot be easily identified, e.g. agricultural run-off, acid rain, etc. |
- How do you classify the various sources of water pollution?
- What are the point sources of water pollution?
- Name any two non-point sources of water pollution?
A person was using water supplied by Municipality. Due to shortage of water he started using underground water. He felt laxative effect. What could be the cause?
The concentration of fluoride, lead, nitrate and iron in a water sample from an underground lake was found to be 1000 ppb, 40 ppb, 100 ppm and 0.2 ppm, respectively. This water is unsuitable for drinking due to the high concentration of ______.
Study the picture given below and answer the question:
How does water get polluted?
Liquid kitchen waste alone constitutes the sewage.
Household detergents are safe and non-contributors to water pollution.
