Sand stone is
...Sand stone is
sedimentary rock
metamorphic rock
igneous rock
volcanic rock
Correct answer is A
No explanation has been provided for this answer.
For the manufacture of Portland cement, the proportions of raw materials used are ...
In cement, the compound quickest to react with water is ...
Ultimate strength of cement is provided by ...
Depending on the chemical composition and mechanical properties, iron may be classified as ...
Due to attack of dry rot, the timber ...