show that air occupied space and is present
everywhere, explaintion and diagram
Answers
Explanation:
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Answer:
Air
Air is a mixture of several gases. We cannot see or smell air but air is everywhere around us. Air is necessary for the breathing of all the living things. No living things can survive without air.
Wind
We cannot see air but we can feel its presence when it starts moving (or blowing). Moving air is called wind.
(1) Moving air makes the clothes hanging on a clothes line sway.
(2) The air blowing in a garden stirs the leaves and branches of trees.
(3) When a fan is switched on, the air moved by the blades of the fan makes the pages of an open book flutter back and forth.
(4) It is the moving air which makes it possible for us to fly a kite in the sky (by pushing against it).
(5) It is also the moving air which pushes the sails of yacht (sailing boat) and makes it move in water.
(6) In agriculture moving air helps us separate husk from wheat grains during winnowing.
(7) It is the moving air (or blowing air) which makes a phirki rotate.
(8) Weathercock is a device which shows the direction in which the air is moving (or blowing) at a place.
