Advertisements
Advertisements
प्रश्न
Can you suggest a method to collect water from sea water?
Advertisements
उत्तर
Evaporation
APPEARS IN
संबंधित प्रश्न
How does water kept in an earthen pot (matka) become cool during summer?
Evaporation takes place from the
Why are we able to sip hot tea or milk faster from a saucer rather than from a cup ?
What is evaporation ? State the various factors which affect evaporation.
Which of the following are also considered to be the states of matter ?
- Plasma
- Platelets
- BEC
- BHC
The scientists now say that there are actually five states of matter A, B, C, D and E. The state A has a fixed volume but no fixed shape. The state B can be compressed very easily by applying pressure and state C has a fixed shape as well as a fixed volume. The state D is a mixture of free electrons and ions whereas state E is named after an Indian scientist and a famous physicist.
- Name the physical states (i) A (ii) B (iii) C (iv) D, and (v) E
- Name one substance belonging to state C which can directly change into vapours on heating. What is this process known as ?
- Name one substance which normally belongs to state B but whose solid form changes directly into gaseous state.
- Name the most common substance belonging to state A.
- Which state of matter makes the sun and other stars to glow ?
Give a geographical reason:
Air becomes saturated.
How does the water kept in an earthen pot remain cool?
Evaporation of water from lakes and river ______.
Comment on the following statements:
Evaporation produces cooling.
