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प्रश्न
A list of words is given in a box. Use appropriate words to fill up the blank in the following statement
The ______ makes the windmill rotate.
उत्तर
The Wind makes the windmill rotate.
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संबंधित प्रश्न
What is greenhouse effect?
Give two uses of the following component present in air:
nitrogen
How is air useful to agriculture?
How is air useful to windmills?
Tick (√) the correct alternative from the choice given for the following statement.
Respiration
Name the following.
Inert gases in the air
Water does not have a ______ but has definite ______ and ______.
Fill in the blank:
Rusting is a chemical reaction which involves _____ oxidation.
Draw a neat labelled diagram for the following experiment.
To determine the component of air used up in burning, by using phosphorus and a bell jar.
Match the items of Column I with the items of Column II
| Column-I | Column-ll | ||
| (a) | Weather cock | (i) | Gases and fine dust particles |
| (b) | Mountaineers | (ii) | Sailing yacht |
| (c) | Fine hair inside the nose | (iii) | Oxygen cylinders |
| (d) | Smoke | (iv) | Direction of airflow |
| (e) | Wind | (v) | Prevent dust particles |
