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प्रश्न
The ultimate source of all water on the earth is
विकल्प
oceans and seas
spring and wells
rivers and lakes
rain
उत्तर
rain
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संबंधित प्रश्न
Why is water essential for life?
.................... is the purest form of natural water.
What do you mean by water pollution ?
Name a ‘pure form’ and an,‘impure form’ of water in the natural state.
Give the importance of dissolved minerals & salts.
Give a balanced equation for the following conversion:
Sulphur dioxide to sulphurous acid using a neutral liquid.
Give a balanced equation for the following conversion:
Magnesium bicarbonate in temporary hard water to magnesium carbonate by boiling.
What is meant by the term ‘offshore drilling’. State the main environmental effects of offshore drilling.
Unscramble the words and fill in the blanks.
- ondencsaonti ______
- vaeionorpat ______
- ecippitatrino ______
Among the given options, which one is not correct for the use of large amounts of fertilisers and pesticides?
