Advertisements
Advertisements
प्रश्न
Fill in the blanks in the following statements using words given in the box.
| air, handpumps, cholera, water, large, ground |
A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.
Advertisements
उत्तर
A very large number of our people defecate in the open. It may cause water pollution and soil pollution. Both the surface water and ground water get polluted. Ground is the source for wells, tube-wells and hand pumps. Thus it becomes the most common route for water borne diseases like cholera, dysentery, etc.
APPEARS IN
संबंधित प्रश्न
Name the four main sources of water.
State the importance of water cycle in nature.
Why is water very precious for all living being ?
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Give reason On opening a bottle of a cold drink, a fizz sound is heard.
What is the composition of water? In what volume its elements combine?
Why is it said that water is life?
Give a balanced equation for the following conversion:
Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.
Fill in the blank:
The sample of hard water which lathers with soap after boiling and filtration contains _____.
Name a deliquescent substance’.
If, at some place, it did not rain for a very long period of time, what would be its effect on the life of the people there?
Suggest some ideas to save rainwater in your school.
_____ is a type of rainwater harvesting.
Rivers from land, add minerals to seawater. Discuss how?
On which of the following day is World Water Day observed?
From where do the following usually get water? In which form is water present in them?
Clouds
Pick from the following one chemical used to disinfect water.
A mixture (x) in water contains suspended solids, organic impurities, inorganic impurities (a), nutrients (b), disease-causing bacteria and other microbes. Give names for (x), (a) and (b)?
Write any two activities which require less than one bucket of water.
