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Write an answer to the following question in your own words.
Make a list of the components we obtain from mineral oil.
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Write an answer to the following question in your own words.
What is a tsunami?
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Give a scientific reason.
A wet cloth is wrapped around a water storage container in summer.
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Explain the difference between Separation by distillation and by separating funnel.
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Write an answer to the following question in your own words.
Where are the methods of separation by distillation and by separating funnel used? Why?
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Write an answer to the following question in your own words.
Which precaution will you take while using the methods of distillation and separation by separating funnel?
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Give examples of 3 plants that have:
spiny fruits
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Give examples of 3 plants that have:
many-seeded fruits
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What are the similarities and differences between jowar and moong?
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What is the importance of good soil structure?
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What are the remedial measures for the following calamity:
Storm
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What are the remedial measures for the following calamity:
Cloudburst
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True or false? Give reasons for your answer.
Information about a forthcoming storm is to be kept secret.
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True or false? Give reasons for your answer.
You should not swim when there is lightning in the sky.
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True or false? Give reasons for your answer.
It is possible to prevent the eruption of a volcano.
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Give a scientific reason.
Buttermilk is churned to get butter.
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Match the pairs.
| Group ‘A’ | Group ‘B’ | ||
| (1) | Parasitic plant | (a) | Mushroom |
| (2) | Insectivorous plant | (b) | Lichen |
| (3) | Saprophytic plant | (c) | Drosera |
| (4) | Symbiotic plant | (d) | Cuscuta |
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Match the pairs:
| Group ‘A’ | Group ‘B’ |
| (1) Parasitic plant | (a) Mushroom |
| (2) Insectivorous plant | (b) Lichen |
| (3) Saprophytic plant | (c) Drosera |
| (4) Symbiotic plant | (c) Drosera |
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Read the paragraph and answer the following questions.
| I am a penguin. I live in polar region covered by snow. My abdomen is white. My skin is thick with a layer of fat underneath. My body is spindle-shaped. My wings are small. My toes are webbed. We live in flocks. |
- Why is my skin white and thick and why is there a thick layer of fat underneath?
- Why do we live in flocks sticking close to each other?
- Which geographical region do I inhabit? Why?
- Which adaptations should you have to enable you to live permanently in the polar region? Why?
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Who is lying?
Cockroach – I have five legs.
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