Advertisements
Advertisements
Question
Write any two activities which require more than a bucket of water.
Advertisements
Solution
Two activities that require more than a bucket of water are:
- Washing a massive number of clothes.
- Irrigating a crop field.
APPEARS IN
RELATED QUESTIONS
Name the two gases from which water is formed. What is the chemical composition of these two gases in water ?
Name the gas produced when a piece of calcium is added to water.
Give the molecular formula of water ?
Give the importance of dissolved air – in water.
State any two sources of water pollution.
________ of water is in oceans and seas.
Rivers from land, add minerals to seawater. Discuss how?
In the coastal areas, wind current moves from the sea towards the land during the day; but during the night it moves from land to the sea. Discuss the reason.
From where do the following usually get water? In which form is water present in them?
Clouds
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 |
