Advertisements
Advertisements
Question
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 |
Advertisements
Solution
| Column I | Column II | ||
| (a) | Inorganic impurities | (ii) | nitrates and phosphates |
| (b) | Organic impurities | (iv) | pesticides and herbicides |
| (c) | Nutrients | (i) | phosphorus and nitrogen |
| (d) | Bacteria | (iii) | cholera and typhoid |
APPEARS IN
RELATED QUESTIONS
Give balanced chemical equation for the reaction of water with Carbon dioxide.
Name the gas produced when steam is passed over hot coke.
What are the main causes of water pollution ? How can it be controlled ?
Give reason of Icebergs float on ocean water.
How are natural springs of water formed ?
Explain rain water harvesting.
What is the effect of impurities present in the water on the melting point and boiling point of water?
How is aquatic life benefited by the fact that water has maximum density at 4oC?
Give a balanced equation for the following conversion:
Sulphur dioxide to sulphurous acid using a neutral liquid.
Give a reason for the following:
Efflorescence is minimum during humid conditions.
Name or state the following:
A deliquescent salt of a trivalent metal.
Look at the map of Tamilnadu showing annual rainfall and answer the questions given below
- Identify the districts that get only low annual rainfall in Tamilnadu.
- Identify the districts that get a medium annual rainfall in Tamilnadu.
- State the districts that enjoy high annual rainfall in Tamilnadu.
Water changes to ice at ______.
How is the life of organisms living in water affected when water gets polluted?
A jumbled word is given here. Write the correct form of the word.
WOSN
Pick from the following one chemical used to disinfect water.
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.
Fill in the blanks in the following statements using words given in the box.
| air, handpumps, cholera, water, large, ground |
A very ______ number of our people defecate in the open. It may cause ______ pollution and soil pollution. Both the surface water and ______ water get polluted. ______ water is the source for wells, tubewells and ______. Thus it becomes the most common route for ______ borne diseases like ______, dysentery, etc.
Construct a crossword puzzle of your own using the keywords.
