Question
State some ways to prevent soil erosion.
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Column I
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Column I
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$(a)$
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Large crystals
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$(i)$
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Turns lime water milky
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$(b)$
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Depositing a layer of zinc on iron
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$(ii)$
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Physical change
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$(c)$
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Souring of milk
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$(iii)$
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Rust
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$(d)$
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Carbon dioxide
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$(iv)$
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Sugar candy $(Mishri)$
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$(e)$
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Iron oxide
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$(v)$
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Chemical change
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$(f)$
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Dissolving common salt in water
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$(vi)$
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Galvanisation
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Column I
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Column II
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$(a)$
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Tartaric acid
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$(i)$
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soap
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$(b)$
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Calcium hydroxide
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$(ii)$
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curd
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$(c)$
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Formic acid
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$(iii)$
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unripe mangoes
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$(d)$
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Sodium hydroxide
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$(iv)$
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ant's sting
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$(e)$
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Lactic acid
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$(v)$
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lime water
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Column I
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Column II
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a.
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Pashmina shawl
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i
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Camel wool.
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b.
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Woollen carpet
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ii
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Angora wool.
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c.
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Baby
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iii
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Kashmir goat.
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d.
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Wollen sweater
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iv
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sheep wool.
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