Advertisements
Advertisements
प्रश्न
Water is colourless, odourless and _______.
Advertisements
उत्तर
Water is colourless, odourless and tasteless.
APPEARS IN
संबंधित प्रश्न
Answer the following question.
Suggest three ways to conserve water.
State whether the given statement are true or false. If true, write the reason.
Water availability per person in India is declining.
Give a balanced equation for the following conversion:
Sulphur dioxide to sulphurous acid using a neutral liquid.
Differentiate between the following:
Natural water and treated water
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.
Nitrogen is used for the treatment of drinking water.
Complete the following chart by writing appropriate words in the boxes marked (a) to (e).
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.
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 |
Why is there a need for conserving water? Give two reasons.
