Advertisements
Advertisements
Question
The pH of a sample of water collected from a river is found to be in the range of 3.5 to 4.5. The most likely reason for this is the waste being discharged into the river from a :
(a) soap and detergent manufacturing factory
(b) car battery manufacturing factory
(c) alcohol manufacturing factory
(d) plastic cups moulding factory
Solution
(b) car battery manufacturing factory
Such factories produce acidic wastes that make the river water acidic.
APPEARS IN
RELATED QUESTIONS
Study the diagram below and answer the questions that follow:
1) Name the activity shown in the diagram.
2) Give two objectives of the activity named in (d) (i).
Mention any two objectives of rainwater harvesting.
Explain briefly, how rainwater harvesting is done from open spaces around the buildings in city areas.
Rooftop rainwater harvesting.
Water becomes ice on ______.
About 30% of the fresh water is found in?
The fresh water available on earth is only 3%. We cannot increase the amount of water. In that case, how can sustain the water level?
Groundwater will not be depleted due to ______
______ water is obtained through open wells, tube wells or hand pumps, springs.
How is 3% of freshwater distributed?
