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Which of the following are the primary causes of water pollution?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
Which of the following is a way to use water economically?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
What is the health effects of excess fluoride in drinking water?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
Which of the following salts are the main causes of temporary hardness?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
According to the Geological survey, water with less than 1000 ml/litre of total dissolved solids is __________.
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
Which of the following inhibits the seepage of rainwater into ground?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
Which of the following is mainly responsible for the causes of water pollution?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
In most freshwater lakes, the algal productivity is limited by the availability of which of the following inorganic ions?
(c) Human activities
(d) Both b and c
(b) Freshwater
a) Fluorosis
(c) Phosphorus
(b) Rainwater harvesting
(d) A pukka floor
(d) Magnesium carbonate
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Match it!
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