1.

In countries nearer to polar region, the roads are sprinkled with CaCl_2. This is

Answer»

to minimise the snow FALL
to minimise POLLUTION
to minimise the accumulation of dust on the road
to minimise the wear and tear of the roads

SOLUTION :`CaCl_2` acts as a non-volatile solute and RESULT indepressionin freezing POINT. Thus, snow fall is reduced and prevents blocking of roads in the polar region.


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