Extra question answer science

EXPRESS IN ONE OR TWO WORD

CHAPTER-8,9 AND10

1. A method for removing dust and other suspended particles from water:
2. Standing or still water:
3. Water fit for drinking:
4. Method of cleaning:
5. Extremely small living beings which can cause diseases:
6. The most common method of purifying water:
7. Our body needs it for proper functioning:
8. The method does not removes germs:
9. It should be put in coolers if water cannot be changed:
10. We should use it to take out water from containers:
11. This kills germs and makes it fit for drinking:
12. Waste produce in homes:
13. In cities people get water from it:
14. Chemicals used to save the crops from birds , rats and insects:
15. Oil leaked from tankers carrying it:
16. Materials used to increase the production of crops:
17. Pipes carrying, carrying sewage, should not be kept near the pipe carrying this:
18. People should not wash clothes, or use soaps if they bath in this:
19. This get infected by polluted water:
20. Some people use rivers and ponds for this purpose:
21. When polluted water is used for irrigation, the fertility of soil gets reduced and crops can get:
22. It is an natural resource which is essential for all living beings:
23. It is a habitat for many plants and animals:
24. Name one natural source of water:
25. Some who pollutes water is known as:
26. Water containing impurities is called:
27. Major source of pure water:
28. As water reaches the surface of the earth it gets:
29. This water is major cause of diseases:
30. It spread diseases like malaria, dengue and chikungunya:
31. We can live without this for only one day:
32. Cutting of trees in forest:
33. This water is salty and cannot be used for our daily needs;
34. Collecting rain water for day-to-day use:
35. Planting tree is known as:
36. Saving of water:
37. Amount of falling at a place:
38. Water present under the surface of earth:
39. Dust and other suspended particles present in unclean water can be removed by:
40. Our body requires, and uses, water for:
41. Maintaining for a long time.   
42. 
    
43. TRUE/ FALSE
44. 
    
45. 
    
46. CHAPTER-8,9 AND 10
    1. Water is not essential for us.
    2. As water reaches the ground it becomes very pure.
    3. Major source of pure water is rain.
    4. When rain water is formed, it is the purest form.
    5. Potable water is bad for drinking.
    6. Our body needs water to do all metallic activities.
    7. We can filter water with a filter paper.
    8. The most common method of purification is chlorination.
    9. If water is not boiled after filtration automatically germs will be killed.
    10. Traditional method of filtration can only done by charcoal.
    11. We all need to do as much harvesting of rain water as possible or as much as we can do.
    12. Leaking pipes and taps should be repaired immediately.
    13. Ocean is the main natural source of water.
    14. Turning off the tap after using it is good.
    15. Extremely small particles present in water are known as pollutants.
    16. We should always store water in covered and dirty containers.
    17. Germs present in water, may be killed by chlorination.
    18. Standing or still water is not a good for mosquitoes to breed.
    19. We should use a ladle to take out water from a container.
    20. We can allow water to stagnate around our houses.
    21. We need to purify water before drinking it.
    22. We can drink water that has been stored for many days.
    23. Polluted water may contain dust, germs and smoke.
    24. River water is the purest form of water.
    25. Throwing domestic waste in rivers cause water pollution.
    26. Use of chemical fertilizes helps in preventing water pollution.
    27. Reckless cutting of trees is known as afforestration.
    28. We can live without food for many days.
    29. Increased in growth of micro-organisms in water, increase the amount of oxygen for aquatic animals.
    30. Over irrigation of fields should be checked regularly.
    31. Water sprinkler reduce wastage of water.
    32. Water sprinkler does not reduce wastage of water.
    33. Throwing used water in open space is good.
    34. Using a mug while bathing is not a good quality.
    35. Take only that much water as much you can drink.