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JNAN PUBLICATION-ROLE OF SUBSTANCES IN ENVIRONMENT-EXAMPLE
- What are the different components of paints?
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- What is the reason for wide use of cement?
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- What will happen of you prepare ball of cement, sand and water and kee...
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- Write the name of three non-metallic element.
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- What is protein?
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- Where protein is found in our body?
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- What speed up numerous chemical reactions that occur in our body?
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- On what the external appearance of the progeny of an organism depends.
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- What partly determines the behavioural pattern of an animal?
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- Name the four metals that are essential for our survival.
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- When you eat fried fish, you ingest very small pieces of bone along wi...
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- What is there in the Calcium tablets prescribed by doctor?
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- What is there in animal liver?
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- With what the hard external shell of snails, conches and the like is m...
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- How many elements are present in living organisms in form of various c...
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- How is lipid important?
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- Name some substances other than fruit which tastes sour?
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- What is acid?
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- From where the word acid come from?
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- Name an acid which produced in our stomach, how is it useful?
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