Water Online Test 6th Science Lesson 14 Questions in English

1. By which of these the temperature of earth is regulated?

2. In how many natural forms water is available in earth?

3. Match the distribution of fresh water in various forms.
1. Glaciers A. 0.3%
2. Surface water B. 30.1%
3. Ground water C. 68.7%

4. State the correct statements given below
i) Saline water is suitable for drinking.
ii) It has large amount of dissolved solids.

5. Define the qualities of water.

6. How many categories of water are classified based on its salinity?

7. Which of these salts is not present in the Ocean water?

8. What is the freezing temperature of water at normal pressure?

9. Which of these substances may dissolve in the water?

10. What is the other name of water cycle?

11. Match
Classification Amount of salt
i) Fresh water A. upto 3%
ii) Brackish water B. > 3%
iii) Sea water C. 0.05% to 1%

12. Assertion (A): Salinity is defined as the amount of salt present in the water.
Reasoning(R): The physical composition of water remains the same in all places.

13. We can obtain surface water through _____ and _____.

14. Rain water can be used for human consumption.

15. What is the source of energy for the water cycle?

16. Most of the earth fresh water is available from?

17. How many stages are involved in Water cycle?

18. What is the process of loss of water from aerial parts of a plant in vapor form?

19. How many types of Natural sources of fresh water are available?

20. Which is not categorized as a surface water source?

21. How much percentage of fresh water is available in frozen state?

22. Water levels in the reservoir are measured in _________

23. Gallon is used as a measure the ____ of liquids.

24. Assertion (A): During winter season Aquatic animals under the ice layer is alive.
Reasoning (R): Floating layer of ice acts as a protective coat.

25. What are the reasons for the water scarcity?

26. Water scarcity is prevented by ____ of water.

27. In which year the Rain Water Harvesting movement was launched in Tamilnadu?

28. Which of these is the wetland meeting point of fresh water and sea water?

29. Human body averagely requires _____ liters of water for proper functioning.

30. Match the location of swamps in India.
i) Pichavaram A. Odisha
ii) Bhitarkanika B. Chennai
iii) Pallikaranai C. West Bengal
iv) Sundarbans D. Chidambaram

31. Which of these factors reduce the ground water pollution?

32. The Swamp water may contain,

33. What is the disinfectant chemicals used for cleaning the polluted water?

34. Who proved the Chemical composition of water?

35. Which of the following is used to regulate and distribute the water flow?

36. Which is the largest ice caps and glaciers source of India?

37. How many types of Rain water harvesting methods are available?

38. What is the total percentage of sea water found in oceans and seas?

39. In which year the Elements of chemistry was published?

40. The World water day is observed on,

41. Which is not an industrial usage of water?

42. What are the Human bodily functions of water?

43. Which of these is indicated by the moisture in the soil?

44. Which of these is not present in the Himalayas?

45. Which of the human part has the minimum water content?