Please select a subject first
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What are antagonistic muscles? Give one example.
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The number 4.582 can be rounded off as 4.58.
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How many times will the ‘minute hand’ rotate in one hour?
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Pascal’s law is used in
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Hydraulic lift works under the principle of _______.
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Convection is the process by which the thermal energy flows in solids.
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Which one of the following statements about thermal conductivity is correct? Give reason.
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______ is a device that protects building from lightning strike.
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Consider the statement given below and choose the correct option.
Assertion: It is safer to stand under a tall tree during lightning.
Reason: It will make you the target for lightning.
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What kind of musical instrument is a sitar?
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Chandrayaan-1 was launched from Sriharikota.
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What are the objectives of Chandrayaan -1?
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What are the achievements of Chandrayaan - 1?
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Match the following.
| Universal solvent | Water pollutant |
| Hard water | Kills germs |
| Boiling | Ozonisation |
| Sterilization | Water |
| Sewage | Stomach ailments |
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Give a reason for the following.
Hard water is not good for washing utensils.
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