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प्रश्न
Fill in the blank:
Unpolluted water has _____ amount of dissolved oxygen.
उत्तर
Unpolluted water has high amount of dissolved oxygen.
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संबंधित प्रश्न
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Give one word for the following statement :
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Complete the statement by filling the blank with the correct word from the option.
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CHARREGE
An open-drain system is a breeding place for which of the following
Why should we not throw used tea leaves into the sink?
Match the items of Column I with the items of Column II with reference to sewage.
| Column I | Column II | ||
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| (c) | Nutrients | (iii) | cholera and typhoid |
| (d) | Bacteria | (iv) | pesticides and herbicides |
