Building Materials
Sandstone is a
(i) Sedimentary rock
(ii) Aqueous rock
(iii) Siliceous rock

Only (i)
All (i), (ii) and (iii)
Both (i) and (ii)
Both (i) and (iii)

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Building Materials
Priming consists of

None to these
One part of white lead, 8 parts of chalk and four parts of twice boiled linseed oil
8 parts of white lead, one part of chalk and four parts of twice boiled linseed oil
One part of white lead, 8 parts of chalk and one part of linseed oil

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