Advertisements
Advertisements
Question
Which of the following does not show water shortage?
Options
Taps running dry.
Long queues for getting water.
Marches and protests for demand for water.
A family gets three buckets of water per person per day.
Advertisements
Solution
A family gets three buckets of water per person per day.
Explanation:
The United Nations has recommended that a minimum of 50 litres of water should be available to each of us per person per day for drinking, washing, cooking and cleaning. This amount is about two and a half buckets of water per person per day. Therefore, a family getting three buckets of water per person per day does not show a water shortage.
APPEARS IN
RELATED QUESTIONS
Give the molecular formula of water ?
What are the main causes of water pollution ? How can it be controlled ?
Give reason of Carbonated drinks are bottled under high pressure.
Explain how the peculiar variation of density of water with temperature can protect marine-life.
Explain rain water harvesting.
Answer the following question.
Suggest three ways to conserve water.
Compare the effect of soaps and detergents on hard water.
State what is potable water. Give its qualities or characteristics which make it fit for human consumption.
Give a reason why alcohol and water form a miscible mixture while oil & water do not.
Complete the statement by filling the blank with the correct word from the option.
The ratio of hydrogen & oxygen in water is ____.
Give reason for the following:
The percentage of oxygen, in air dissolved in water, is higher than the percentage of oxygen in ordinary air.
Fill in the blank:
Unpolluted water has _____ amount of dissolved oxygen.
State any two sources of water pollution.
Differentiate between the following:
Natural water and treated water
Water changes to ice at ______.
Nitrogen is used for the treatment of drinking water.
From where do the following usually get water? In which form is water present in them?
Plants
From where do the following usually get water? In which form is water present in them?
Aquifer
Match the items of Column I with the items of Column II with reference to sewage.
| Column I | Column II | ||
| (a) | Inorganic impurities | (i) | phosphorus and nitrogen |
| (b) | Organic impurities | (ii) | nitrates and phosphates |
| (c) | Nutrients | (iii) | cholera and typhoid |
| (d) | Bacteria | (iv) | pesticides and herbicides |
