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