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प्रश्न
State whether the given statement are true or false. If true, write the reason.
Ganga−Brahmaputra plain of India is an overpopulated region.
विकल्प
True
False
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उत्तर
Ganga−Brahmaputra plain of India is an overpopulated region.
This statement is true. Plains and river valleys offer suitable land for agriculture. Hence, these are densely-populated areas of the world.
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संबंधित प्रश्न
The ultimate source of all water on the earth is
Explain why:
Rain water does not leave behind concentric rings when boiled.
What will happen if the total supply of potable water is finished?
Name the solute, solvent & solution in the statement – ‘sodium chloride dissolves in water to give sodium chloride solution’. Define each of the terms in italics.
Differentiate between the following:
Natural water and treated water
Match the terms in List I with the correct answers in List II.
| List I | List II |
| 1. Solubility in a given solvent decreases with an increase in temperature. | A: Na2SO4.10H2O |
| 2. A white efflorescent crystal | B: NaOH |
| 3. A hygroscopic dehydrating agent | C: Ca(HCO3)2 |
| 4. A deliquescent alkali | D: conc. H2SO4 |
| 5. A substance present in temporary hard water | E: CaSO4 |
Unscramble the words and fill in the blanks.
- ondencsaonti ______
- vaeionorpat ______
- ecippitatrino ______
A jumbled word is given here. Write the correct form of the word.
QUIFERA
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 |
Think and suggest some ways to minimise waste and pollutants at their source, taking your home as an example.
