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Mariner’s compass is used to find the
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In the olden days, sailors used to find direction by suspending a piece of ______.
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Circle the odd one and give a reason
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Gypsum is added to the cement for ______.
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What are the ingredients of the cement?
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Explain the process of manufacturing cement.
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Ravi is a farmer; he rears many cattle in his farm. His field has many bio wastes. Advise Ravi how to change this bio waste to compost by using vermi -composting techniques. Explain the benefits of vermi castings.
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______ is an example of textile fibre.
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Cotton cloth is not suitable for summer season.
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Match the following
| 1. | Fibre yielding plant | Chloramine |
| 2. | Hardwood | Spice |
| 3. | Neem | Hemp |
| 4. | Clove | Cereals |
| 5. | Millet | Teakwood |
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Analogy
coconut : fibre :: rose : _______
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Application of force in an object results in motion from a state of ______.
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The space between ______ particles is the greatest one.
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______ is not affected by gravity.
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How does the substance of gaseous particles change to a liquid state?
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The flat portion of the leaf is called ______.
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______ plant’s leaves grow up to 3 meters across.
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Complete the given analogy.
Photosynthesis: ______
Transpiration: Stomata.
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The stalk of the leaf is known ______.
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On the lower side of the leaf, there are tiny pores or openings known as ______.
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