Answer:

Amorphous silica cement that hardens as silica gel by reacting chemically alkali in water.

a. Standard Cement

b. Pozzolan Cement

c. Union cement

d. Northern Cement

Explanation:

CARRYONLEARNING

=>> ANSWER <<=

QUESTION:

Amorphous silica cement that hardens as silica gel by reacting chemically alkali in water.

a. Standard Cement

b. Pozzolan Cement

c. Union cement

d. Northern Cement

Answer:

A.STANDARD CEMENT

#Brainliest

#Brainly.correctanswer.com

#Hope it helps..

Explanation In the picture!^^