Advertisements
Advertisements
प्रश्न
_____ is a type of rainwater harvesting.
पर्याय
Roof top harvesting
Watercycle
उत्तर
Roof top harvesting is a type of rainwater harvesting.
APPEARS IN
संबंधित प्रश्न
Cleaning of water is a process of removing ______.
What is the smallest particle of water ? Describe it’s structure.
Answer the following question:
Name two gases dissolved in natural water.
Give balanced chemical equations to show the reaction between Coke and steam.
What causes the violence associated with torrential rain?
Explain the following observation:
Washing-soda become coated with a white powder when left exposed to the atmosphere.
Around 97% of water available on earth is ______ water.
An open-drain system is a breeding place for which of the following
Water polluted by various human activities causes a number of water-borne diseases. Which of the following is not a waterborne disease?
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 |
