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प्रश्न
Select natural and man-made matter from the following list:
Wood, plastic, silk, medicines, detergents, coal, water, ceramic, cotton, glass, nylon, fruits.
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उत्तर
Natural matter: Wood, silk, coal, water, fruits, cotton
Man-made matter: Plastic, medicines, detergents, ceramic, glass, nylon.
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संबंधित प्रश्न
Evaporation of a liquid causes cooling.
The process of a gas converting directly into solid is called vaporization.
Evaporation takes place at ...............temperature.
Give reason :
Liquids have a definite volume but no definite shape.
Fill in the blank
Any matter which has a definite ................. but no definite shape is called a ...............
Fill in the blank
......... can flow.
Fill in the blank
The temperature at which a liquid boils is called the ................. point of that liquid.
Give two examples for of the following
Substances which are rigid and not compressible.
Match the following
| Column A | Column B | ||
| a | Solids | 1 | Can flow in all directions |
| b | Sublimination | 2 | The temperature at which a liquid changes into its gaseous state |
| c | Boiling Point | 3 | Can have any number of free surfaces |
| d | Gases | 4 | Gaps between particles |
| e | Intermolecular space | 5 | Change of state from solid to gas |
Gas like the state of Matter that exists at extremely cold temperatures used in the field of cryogenics.
