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WATER A PRECIOUS RESOURCES
Test Description: WATER CYCLE AND IMPORTANCE OF WATER
Instructions: Answer all questions to get your test result.
1) Which of the following is a way to use water economically?
A
(a) Construction of bawris
B
c) Drip irrigation
C
(d) Infiltration
D
(b) Rainwater harvesting
2) Which of the following inhibits the seepage of rainwater into ground?
A
(c) Grass lawn
B
(d) A pukka floor
C
(a) Forest land
D
(b) Playground
3) Which of the following rivers is called the world’s most polluted river?
A
(c) Cauvery River
B
a) Ganga River
C
(d) Yamuna River
D
b) Chenab River
4) Which of the following are the primary causes of water pollution?
A
(b) Animals
B
(c) Human activities
C
(a) Plants
D
(d) None of these
5) Which of the following is mainly responsible for the causes of water pollution?
A
a) Afforestation
B
(d) Both b and c
C
(b) Oil refineries
D
(c) Paper factories
6) Which of the following salts are the main causes of temporary hardness?
A
(b) Magnesium sulphate
B
(d) Magnesium carbonate
C
(a) Calcium sulphate
D
(c) Magnesium chloride
7) According to the Geological survey, water with less than 1000 ml/litre of total dissolved solids is __________.
A
(c) Slightly saline
B
(d) Moderately saline
C
a) Brine water
D
(b) Freshwater
8) In most freshwater lakes, the algal productivity is limited by the availability of which of the following inorganic ions?
A
(d) All of the above
B
(b) Nitrogen
C
(a) Carbon
D
(c) Phosphorus
9) Which of the following is a waterborne disease?
A
(a) Typhoid
B
(d) All of the above
C
(c) Diarrhoea
D
(b) Cholera
10) What is the health effects of excess fluoride in drinking water?
A
(b) Toothaches
B
a) Fluorosis
C
(c) Lung disease
D
(d) Intestinal infection
*select an answer for all questions
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