Advertisements
Advertisements
प्रश्न
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.
Advertisements
उत्तर
Winds are created by the movement of air from one location to another. During the day, the air above the land heats up quickly and begins to rise. This results in the formation of a low-pressure area, into which air from the sea rushes. During the night, when water slowly cools, the air above the water is warmer than the air on land. As a result, air travels from land to sea, resulting in winds.
APPEARS IN
संबंधित प्रश्न
The solubility of a gas in water.............. with rise in temperature and.......................with rise in pressure.
Match the statements in column A with that in column B.
| Column A | Column B |
| (a) deliquescent substance | (1) sodium bicarbonate |
| (b) hygroscopic substance | (2) magnesium chloride |
| (c) efflorestance substance | (3) conc. sulphuric acid |
| (d) substance causing temporary hardness | (4) washing soda |
Why is water considered a compound?
Give a reason why alcohol and water form a miscible mixture while oil & water do not.
Select the correct answer of the following statement:
A decahydrate crystal.
If, at some place, it did not rain for a very long period of time, what would be its effect on the life of the people there?
True or false? Correct the wrong statement.
We get rainwater throughout the year.
Which of the following does not show water shortage?
Pick from the following one chemical used to disinfect water.
Animal waste, oil and urea are some of the organic impurities present in sewage. Name two more organic impurities present in sewage.
