Mortar is NOT used for under-water construction because
A. it hardens by lose of water...
Mortar is NOT used for under-water construction because
A. it hardens by lose of water...
Mortar is NOT used for under-water construction because
A. it hardens by lose of water
B. its hardening doe not depend upon evaporation
C. it requires concrete to harden
D. it will be washed away by the flow of water?
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